It is more common to report the standard deviation for grouped data rather than variance for grouped data because the standard deviation is easier to interpret and compare between different groups.
The variance is a measure of the spread of the data, but it is not in the same unit as the original data, making it difficult to interpret. The standard deviation, on the other hand, is in the same unit as the original data, and it provides a more intuitive measure of the spread of the data.
Additionally, the standard deviation can be used to calculate confidence intervals and perform hypothesis tests, which are important statistical tools for analyzing grouped data. Overall, the standard deviation is a more useful and informative measure of variability for grouped data than the variance.
Learn more about deviation:
https://brainly.com/question/475676
#SPJ11
CAN SOMEONE PLEASE HELP ME WITH THIS :((
What is the value or arc PQ? Only enter numerical values.
The value of arc PQ is 110°
What is circumference of a circle?The circumference of a circle is the length of the 360 degree arc of that circle. Therefore the sum of the arc on a circumference of a circle is 360°
Therefore ,
8x-10+ 6x + 10x+10 = 360
24x -10+10 = 360
24x = 360
divide both sides by 24
x = 360/24
x = 15
therefore the value of x is 15
Arc PQ = 8x -10
substitute 15 for x
ArcPQ = 8×15-10
= 120-10
= 110°
therefore the value of arc PQ is 110°
learn more about circumference from
https://brainly.com/question/29644055
#SPJ1
assume that for some statistic 1000 tests were performed. to avoid the situation of the incorrectly found significance, bonferroni correction was applied. the resulting p-value is 0.00013. what significance level was chosen for the tests? the significance level was:
The significance level chosen for the tests with total number of test performed as 1000 for given p-value is equal to 0.87 or 87%.
Total number of test performed = 1000
p-value is equal to 0.00013
The Bonferroni correction involves ,
Adjusting the significance level for multiple comparisons by dividing it by the number of comparisons performed.
Here, 1000 tests were performed and the resulting p-value is 0.00013.
The significance level that was chosen for the tests,
Reverse the Bonferroni correction by multiplying the p-value by the number of comparisons,
adjusted p-value = p-value / number of comparisons
number of comparisons = 1000
adjusted p-value = 0.00013
p-value = adjusted p-value x number of comparisons
⇒p-value = 0.00013 x 1000
⇒p-value = 0.13
So the original p-value before the Bonferroni correction was 0.13.
The significance level, we subtract the p-value from 1,
significance level = 1 - p-value
⇒significance level = 1 - 0.13
⇒significance level = 0.87
Therefore, the significance level chosen for the tests was 0.87 or 87%
learn more about significance level here
brainly.com/question/3487014
#SPJ4
Write the point-slope form of the equation of the line that passes through the points (6, -9) and (7, 1). Include your work in your final answer. Type your answer in the box provided to submit your solution.
Therefore , the solution of the given problem of equation comes out to be 10x - y = 51 is the point-slope form of the equation of the line passing through the points (6, -9) and (7, 1).
Explain the equation.Variable words are frequently used in complex algorithms to show consistency between two arguments that are opposed to one another. Academic expressions called equations are used to show the equality of various academic figures. Take into account the details in the z + 7 proposals.
Here,
The equation for the line passing between the points (6, -9) and (7, 1) must be found in the point-slope form.
Using the equation m = (y2 - y1) / (x2 - x1), find the slope (m) of the line, where (x1, y1) and (x2, y2) are the coordinates of the two points.
=> (x1, y1) = (6, -9)
=> (x2, y2) = (7, 1)
=> m = (1 - (-9)) / (7 - 6)
=> m = 10 / 1 m = 10
Consequently, the line's slope is 10.
=> y - y1 = m(x - x1)
=> m = 10 (x1, y1) = (6, -9)
=> y - (-9) = 10(x - 6)
=> y + 9 = 10x - 60
=> 10x - y = 51
Therefore, 10x - y = 51 is the point-slope form of the equation of the line passing through the points (6, -9) and (7, 1).
To know more about equation visit:
https://brainly.com/question/649785
#SPJ1
A landscaping business owner buys a new riding mower for $9,600. 0. The owner makes a $1,000 down payment and applies for an $8,600 four-year, 3. 5% interest rate installment loan, with monthly payments of $192. 26. What is the total cost of the mower? $8,600. 00 $9,600. 00 $9,228. 56 $10,228. 48
The total cost of mower is $10,228.48. The correct option from the following option given is D.
A down payment on a cottage is the money paid in advance by the buyer in a real estate transaction or other large purchase. Down payments are typically a portion of the sales price and can range from 3% to 20% for a primary residence.
The total cost of the mower will be the sum of the down payment and the total amount paid through the loan:
Down payment = $1,000
Total amount paid through the loan = (monthly payment) x (number of months) = $192.26 x 48 = $9,228.48
The total cost of the mower is:
Total cost = Down payment + Total amount paid through the loan
Total cost = $1,000 + $9,228.48
Total cost = $10,228.48
Therefore, the total cost of the mower is $10,228.48.
To know more more about down payment
brainly.com/question/29397199
#SPJ4
a factory has a machine which bends wire at a rate of 2 unit(s) of curvature per second. how long does it take to bend a straight wire into a circle of radius 4?
If a factory machine bends wire at rate of 2 units of curvature per second, then the time required to bend the "straight-wire" into a circle of radius of 4 is 12.56 seconds.
The "Circumference" of a circle is defined as the total length of the curve which makes up the circle's outer boundary,
The formula for "circumference" of a circle is ⇒ C = 2 × π × r,
where "C" = circumference, "π" ≈ 3.14159, and "r" = radius,
In this case, the radius of circle is = 4 units,
So, we substitute "r" = 4,
We get,
⇒ Circumference = 2 × π × 4,
⇒ Circumference = 8π
The machine bends wire at a rate of 2 units of curvature per second, we use the circumference of circle to calculate how long it takes to bend the wire into a complete circle.
The machine bends 2 units of curvature per second, and the circumference of the circle is 8π units,
So, the time taken to bend wire into a complete circle is :
⇒ Time = (Circumference)/(Rate of bending),
⇒ Time = 8π/2,
⇒ Time = 4π ≈ 12.56 seconds.
Therefore, it would take approximately 12.56 seconds to bend a "straight-wire" into a circle.
Learn more about Circumference here
https://brainly.com/question/16125353
#SPJ4
Cual es la constante de proporcionalidad para encontrar la cantidad por pagar a partir del número de cocadas si ni sabes no contestes o si no te denunció
The proportionality constant to find the amount to be paid based on the number of "cocadas" is the price per "cocada"
Proportionality constant is a mathematical term that refers to the constant value that relates two variables that are directly proportional to each other.
The proportionality constant to find the amount to be paid based on the number of "cocadas" will depend on the price per "cocada".
Let's say the price per "cocada" is represented by the variable "p" (in some currency), and the number of "cocadas" purchased is represented by the variable "n".
Then, the amount to be paid can be calculated using the formula
amount to be paid = p × n
Learn more about proportionality constant here
brainly.com/question/29126727
#SPJ4
What is the missing length of a rectangular prism where the height and width are both 9 cm and the surface area is 432 cm2?
The missing length is 7.5 cm.
What is a rectangular prism?
A three-dimensional solid form with six faces, including rectangular bases, is called a rectangular prism. A rectangular prism also refers to a cuboid. A cuboid and a rectangular prism have the same cross-section.
Here, we have
Let the missing length be x cm.
The formula for the surface area of a rectangular prism is:
SA = 2lw + 2lh + 2wh
We are given that the height and width are both 9 cm, so we can substitute those values and simplify:
432 = 2(x)(9) + 2(x)(9) + 2(9)(9)
432 = 18x + 18x + 162
432 - 162 = 36x
270 = 36x
x = 270/36
x = 7.5
Hence, the missing length is 7.5 cm.
To learn more about the rectangular prism from the given link
https://brainly.com/question/31509002
#SPJ1
find the equation that is parallel to the line y=-5x-8 and passes through the point (7,-2).Write the equation in slope intercept form
An equation of a line that is parallel to the line y=-5x-8 and passes through the point (7, -2) is y = -5x + 33.
How to determine an equation of this line?In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical expression:
y - y₁ = m(x - x₁)
Where:
x and y represent the data points.m represent the slope.Since the line is parallel to y=-5x-8, the slope is equal to -5.
At data point (7, -2) and a slope of -5, a linear equation for this line can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - (-2) = -5(x - 7)
y + 2 = -5x + 35
y = -5x + 35 - 2
y = -5x + 33
Read more on point-slope here: brainly.com/question/24907633
#SPJ1
The equation of the line that is parallel to y = -5x - 8 and passes through the point (7,-2) is y = -5x + 33, in slope intercept form.
How to find the the equation in slope intercept form
To find an equation that is parallel to the line y = -5x - 8, we know that it must have the same slope. So the slope of the new line is -5.
Now we use the point-slope form of a linear equation to find the equation of the line passing through (7,-2) with slope -5:
y - y1 = m(x - x1)
where m is the slope and (x1, y1) is the given point.
Substituting the values we get:
y - (-2) = -5(x - 7)
Simplifying and solving for y, we get:
y + 2 = -5x + 35
y = -5x + 33
Therefore, the equation of the line that is parallel to y = -5x - 8 and passes through the point (7,-2) is y = -5x + 33, in slope intercept form.
Learn more about slope intercept form at https://brainly.com/question/22057368
#SPJ1
or Rewrite the following equation in slope-intercept form. 8x + 3y = –17 Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answer:
-17 - 3y = 8x
Step-by-step explanation:
A two-bedroom house in Seattle was worth $400,000 in 2005. Its appreciation rate is 3.5% each year.
a. How much is the house worth in 2015?
b. When will it be worth $800, 000?
c. In Jacksonville, houses are depreciating at 2% per year. If a house is worth $200, 000 now, how much value
will it have lost in 10 years?
Answers:
(a) $564,239.50
(b) 2026
(c) $36,585.44
==========================================
Explanation:
Part (a)
One template for exponential equations would be
y = a*b^x
Another template is
y = a(1+r)^x
which is a bit more descriptive. I'll use the second template.
a = 400000 = starting valuer = 0.035 = growth rate in decimal formr is positive for exponential growth or appreciation.
The equation y = a(1+r)^x updates to y = 400000*(1+0.035)^x and then simplifies to y = 400000*(1.035)^x
From here we plug in x = 10 because the year 2015 is ten years after 2005.
So,
y = 400000*(1.035)^x
y = 400000*(1.035)^10
y = 564239.504248449
y = 564239.50
The house is worth about $564,239.50 in the year 2015.
------------
Part (b)
We work the process of part (a) in reverse.
This time we know what y is and we want to solve for x.
Use logarithms to isolate the exponent.
y = 400000*(1.035)^x
800000 = 400000(1.035)^x
800000/400000 = (1.035)^x
2 = (1.035)^x
Log(2) = Log( (1.035)^x )
Log(2) = x*Log( 1.035 )
x = Log(2)/Log(1.035)
x = 20.1487916840008
If x = 20, then,
y = 400000*(1.035)^x
y = 400000*(1.035)^20
y = 795,915.545386338
y = 795,915.55
We're short of the goal of $800,000.
If x = 21, then
y = 400000*(1.035)^x
y = 400000*(1.035)^21
y = 823,772.589474859
y = 823,772.59
We've gone over the goal.
Somewhere between x = 20 and x = 21 is when the house will be worth exactly $800,000.
It's better to side with x = 21 since x = 20 comes up short.
21 years after 2005 is 2005+21 = 2026
------------
Part (c)
Go back to the template: y = a(1+r)^x
This time we have
a = 200,000r = -0.02The r value is negative to indicate exponential decay or depreciation.
y = a(1+r)^x
y = 200000(1+(-0.02))^x
y = 200000(1-0.02)^x
y = 200000(0.98)^x
The 0.98 means the house keeps 98% of its value from year to year.
Plug in x = 10.
y = 200000(0.98)^x
y = 200000(0.98)^10
y = 163,414.56137751
y = 163,414.56
The house starts off at $200,000 and ten years later it's $163,414.56
Subtract the values to determine how much home value was lost.
200,000 - 163,414.56 = 36,585.44
The home value will have lost $36,585.44 over the 10 year period.
A line intersects the points (-3, 4) and
(-2, 3). What is the slope-intercept
equation for this line?
y = -x + [?]
The slope-intercept equation of line is -1 and equation will be y = -x - 1.
What is the slope?
m = (y2 - y1) / (x2 - x1) is the formula for calculating slope from two points on a line, (x1, y1) and (x2, y2). Here,
m = the line's slope
x1 is equal to the initial point's x-coordinate.
y1 is the first point's y-coordinate.
x2 is equal to the second point's x-coordinate.
The second point's x-coordinate is equal to y2.
x1 = -3, y1 = 4; x2= -2, y2=3
m = (3-4)/(-2 - (-3))
= -1 / (-2+3)
= -1/1
m = -1
Substitute the value in given equation:
y = -x + (-1)
y = -x - 1
Hence, the slope-intercept equation of line is -1 and equation will be y = -x - 1.
To know more about slope check the below link:
https://brainly.com/question/16949303
#SPJ9
Use the diagram, state the value of the given trigonometric ratio
Using the trigonometric ratios Cos and Tan we can find Cos A = 0.8 and Tan C = 0.75 from the given diagram.
What are Trigonometric ratios?Trigonometric ratios are mathematical functions used to relate the angles and sides of a right-angled triangle. The three primary trigonometric ratios are:
Sine : It is the ratio between the opposite side of the right triangle and the hypotenuse of the right triangle.
Cosine : It is the ratio between the adjacent side of the right triangle and the hypotenuse of the right triangle.
Tangent : It is the ratio between the opposite side of the right triangle and the adjacent side of the right triangle.
We know that Cos A = adjacent side of the right triangle/ hypotenuse of the right triangle
That is Cos A = AB/AC = 32/40 = 0.8
Similarly Tan C = opposite side of the right triangle/ adjacent side of the right triangle
That is Tan C = BC/AB = 24/32 = 0.75
To know more about trigonometric ratios visit:
brainly.com/question/25122832
#SPJ1
Quadrilateral JKLM has vertices J(-1,3), K(2,0), L(-1,-6), and M(-4,-3). Determine whether each statement about quadrilateral JKLM is true or false.
(WRITE TRUE OR FALSE)
~1.) The quadrilateral is a parallelogram. {True/False}
~2.) Both pairs of opposite sides are congruent. {True/False}
~3.) The diagonals bisect each other. {True/False}
~4.) One pair of opposite sides is parallel. {True/False}
~5.) Both pairs of opposite aides is parallel. {True/False}
~6.) At least one pair of opposite sides is both parallel and congruent. {True/False}
The statements about the given quadrilateral are determined as follows:
1. False 2. False 3.True 4.False 5. False 6. False
What Statements are True about the Quadrilateral?1.) The quadrilateral is a parallelogram. False
To be a parallelogram, opposite sides must be parallel. We can find the slope of each side:
Slope of JK = (0 - 3) / (2 - (-1)) = -1
Slope of KL = (-6 - 0) / (-1 - 2) = 2
Slope of LM = (-3 - (-6)) / (-4 - (-1)) = 1
Slope of MJ = (3 - (-3)) / (-1 - 2) = 2/3
Since the opposite sides do not have the same slope, the quadrilateral is not a parallelogram.
2.) Both pairs of opposite sides are congruent. False
To be a parallelogram, opposite sides must be congruent. We can use the distance formula to find the length of each side:
Length of JK = √((2 - (-1))² + (0 - 3)²) = √(13)
Length of KL = √((-1 - (-1))² + (-6 - 0)²) = 6
Length of LM = √((-4 - (-1))² + (-3 - (-6))²) = √(13)
Length of MJ = √((-1 - 2)² + (3 - (-3))²) = 6
Since the opposite sides do not have the same length, the quadrilateral does not have congruent opposite sides.
3.) The diagonals bisect each other. True
To check whether the diagonals bisect each other, we can find the midpoint of each diagonal:
Midpoint of JL = ((-1 - 1)/2, (3 - 6)/2) = (-1,-1.5)
Midpoint of KM = ((2 - 4)/2, (0 - 3)/2) = (-1,-1.5)
Since the midpoints of JL and KM are the same point, (-1,-1.5), the diagonals bisect each other.
4.) One pair of opposite sides is parallel. False
As we determined in statement 1, none of the pairs of opposite sides are parallel.
5.) Both pairs of opposite sides are parallel. False
As we determined in statement 1, none of the pairs of opposite sides are parallel.
6.) At least one pair of opposite sides is both parallel and congruent. False
As we determined in statements 1 and 2, none of the pairs of opposite sides are both parallel and congruent.
Learn more about quadrilateral on:
https://brainly.com/question/29635320
#SPJ1
5. This solid was created by joining two right rectangular prisms.
4½ cm
8 cm
4 cm
-9 cm
10½ cm
Enter the volume of the solid, in cubic centimeters.
The volume of the solid as shown in the diagram is 540 cm².
What is volume?Volume is the space occupied by a solid shape.
To calculate the volume of the of the solid, we use the formula below
Formula:
V = LWH+lwh............................ Equation 1Where:
V = Volume of the solid L = Length of the bigger prismW = Width of the bigger prismH = Height of the bigger prisml = Length of the smaller prismw = Width of the smaller prismh = Height of the smaller prismFrom the diagram in question,
Given:
L = 10.5 cmW = 9 cmH = 4 cml = 9 cmw = 4.5 cmh = 4 cmSubstitute these values into equation 1
A = (10.5×9×4)+(9×4.5×4)A = 378+162A = 540 cm³Hence, the volume is 540 cm³.
Learn more about volume here: https://brainly.com/question/1331127
#SPJ1
A circle with center O and radius 5 has central angle XOY. X and Y are points on the circle. If the measure of arc XY is 90 degrees, what is the length of chord XY?
The length of chord XY is 5√2.
What is the length of the chord?
It is described as the line segment that connects any two points on the circle's circumference without going through the circle's center. As a result, the diameter is the chord of a particular circle that is the longest and goes through its center. In mathematics, determining the chord's length can be crucial at times.
Here, we have
Given: A circle with center O and radius 5 has a central angle XOY. X and Y are points on the circle. If the measure of arc XY is 90 degrees.
We have to find the length of chord XY.
∠XOY = 90°
OX = OY = 5
We draw a perpendicular from the center to chord XY bisect XY at D.
Now, since OD bisects ∠XOY
∠XOD = ∠YOD = 90°/2 = 45°
Now, in ΔXOD
sin45° = XD/OX
1/√2 = XD/5
5/√2 = XD...(1)
In ΔYOD
sin45° = YD/OY
5/√2 = YD...(2)
Adding (1) and (2), we get
XD + YD = 5/√2 + 5/√2
XY = 5√2
Hence, the length of chord XY is 5√2.
To learn more about the length of the chord from the given link
https://brainly.com/question/26094865
#SPJ1
consider all undergraduate students at a local university to be a population. in this population, the proportion of students who live on campus is 0.23. in a random sample of 300 students from this population, the proportion who live on campus is 0.19. we would call the number 0.19 a a. z-score. b. p-value. c. parameter. d. statistic. e. significance level.
The number 0.19 is a d. statistic, which represents a numerical summary of a sample. The z-score would be calculated by (0.19 - 0.23) / sqrt((0.23 * 0.77) / 300) and would indicate how many standard deviations the sample proportion is from the population proportion.
The p-value and significance level would be used in hypothesis testing to determine the likelihood of obtaining a sample proportion as extreme or more extreme than the observed proportion, assuming the null hypothesis is true.
The parameter is the true proportion of all undergraduate students at the local university who live on campus, which is estimated by the sample statistic.
Learn more about statistic:
https://brainly.com/question/30915447
#SPJ11
20. A 30 gallon tank is being filled at a rate of 2 gallons per minute. There was 6 gallons of
water in the tank to begin. Let y represent the total amount of water in the tank and m
represent the number of minutes. Write an equation to model the amount of water in the
tank.
Type a response
You have responded to 10 of 20 questions.
Submit
Apr 12
Answer:
Y= 2m + 6
Step-by-step explanation:
What is the width of the pool?
Answer:
249 feet
Step-by-step explanation:
Hello!
Let the missing side be x.
We can use a trigonometric ratio to solve this question. The one we are going to use is Tangent.
There are 3 trigonometric ratios: Sin (Opposite/Hypotenuse), Cos (adjacent/hypotenuse), and Tan(Opposite/Adjacent).
We need to use the ratio that involves the 2 sides, 144 and x. That would be Tan, as x is opposite to 60°, and 144 is adjacent to 60°.
Solve for x:tan(60) = x/144tan(60) * 144 = x => Plug tan(60) into a calculator, and multiply the result by 144.The missing side is 249 feet.
What is 2. 803 rounded to the nearest half
Answer: 3
Step-by-step explanation:
sketch the region in the plane consisitng of points whose polar coordinates satisfy the given conditions. 1
In summary, to sketch a region in the plane consisting of points whose polar coordinates satisfy the given conditions, we need to identify the range of values for the radius and angle that satisfy the conditions, plot points using these values, and connect them to form the region.
To sketch the region in the plane consisting of points whose polar coordinates satisfy the given conditions, we need to first understand what the conditions are. In this case, the conditions are not provided, so it's difficult to give a specific answer. However, generally speaking, polar coordinates represent a point in the plane using a radius and an angle. The radius is the distance from the origin to the point, and the angle is the angle formed between the positive x-axis and a line drawn from the origin to the point.
To sketch a region in polar coordinates, we need to identify the range of values for the radius and angle that satisfy the given conditions. We can then plot points in the plane using these values and connect them to form the region.
For example, if the conditions were that the radius must be greater than 2 and the angle must be between pi/4 and 3pi/4, we would plot points with polar coordinates (r, theta) where r > 2 and pi/4 < theta < 3pi/4. We would then connect these points to form the region.
Learn more about polar coordinates here: brainly.com/question/12685970
#SPJ11
farmers use herbicides to limit the growth of weeds among their crops. do you think it would be appropriate to display these data in a histogram without first plotting them in a time plot? explain why or why not.
Whether to use a histogram or a time plot depends on the specific objective of your analysis. A histogram
is suitable for analyzing the distribution of herbicide usage, while a time plot is better for analyzing trends over time.
It would be appropriate to display these data in a histogram without first plotting them in a time plot if you are looking
to analyze the distribution or frequency of herbicide usage across different amounts or categories.
A histogram can provide a clear visualization of the distribution and help identify any patterns or trends in the data.
However, if your goal is to analyze the trend of herbicide usage over time, then it would be more appropriate to use a
time plot.
A time plot will show changes in the usage of herbicides over a specific time period and help identify any seasonal
patterns or trends in the data.
In summary, whether to use a histogram or a time plot depends on the specific objective of your analysis. A histogram
is suitable for analyzing the distribution of herbicide usage, while a time plot is better for analyzing trends over time.
for such more question on histogram
https://brainly.com/question/28164315
#SPJ11
a packaging company strives to maintain a constant temperature for its packages that require a specific temperature range. it is believed that the temperature of packages follows a normal distribution with a mean of 5 degrees celsius and a standard deviation of 0.3 degree celsius. inspectors take weekly samples for 5 weeks of eight randomly selected boxes and report their temperatures. the five weekly sample means are shown in the table below. week 1 4.97 week 2 5.16 week 3 5.12 week 4 5.35 week 5 5.50 how many points are outside the control limits?
There are no points outside the control limits, since all of the weekly sample means are within the range of 4.7 to 5.3 degrees Celsius (the mean of 5 degrees Celsius plus or minus 0.3 degrees Celsius).
help please? I just need an answer. A clear explanation earns brainliest.
Answer:
9. You don't need to take action because the denominator is the same. You only operate on the numerator.
10. Use equivalent fractions that do have a shared denominator if the denominators are not the same. To accomplish this, you must identify the two denominators' least common multiples (LCM). Rename the fractions having a common denominator before adding those with different denominators.
Step-by-step explanation:
9. You don't need to take action because the denominator is the same. You only operate on the numerator.
10. Use equivalent fractions that do have a shared denominator if the denominators are not the same. To accomplish this, you must identify the two denominators' least common multiples (LCM). Rename the fractions having a common denominator before adding those with different denominators.
you are in charge of conducting a very important study on the efficacy of imitrex on migraine sufferers. you ask 25 women to test this drug. each of the 25 women is given 'excedrin for migraines' immediately after the onset of their first migraine, after which you measure the time it takes for the headache to subside. after the onset of their second migraine, you give them imitrex and again measure the time it takes for the headache to subside. assuming the data are normally distributed, which is the most appropriate statistical test to determine if imitrex works better than excedrin at eliminating migraines?
If the p-value obtained from the paired t-test is less than the predetermined level of significance (usually 0.05), then it can be concluded that there is a statistically significant difference between the two treatments, and that imitrex is more effective than excedrin at eliminating migraines.
To determine if Imitrex works better than Excedrin at eliminating migraines in your study, the most appropriate statistical test to use is the Paired Samples t-test.
This test is suitable because:
We have two related samples: the same 25 women are given both Excedrin and Imitrex, so their response times are paired.
We're comparing the mean response times between two treatments, which requires a t-test.
The data is assumed to be normally distributed.
To conduct the Paired Samples t-test, follow these steps:
Calculate the difference in response times for each woman (Imitrex time - Excedrin time).
Calculate the mean of these differences.
Calculate the standard deviation of the differences.
Determine the degrees of freedom (25 women - 1 = 24).
Using the mean, standard deviation, and degrees of freedom, calculate the t-statistic.
Compare the t-statistic to the critical value from the t-distribution table, using your chosen significance level (e.g., 0.05).
If the t-statistic is greater than the critical value, reject the null hypothesis, concluding that there's a significant difference between the effectiveness of Imitrex and Excedrin for migraine relief.
For similar question on t-distribution.
https://brainly.com/question/24277447
#SPJ11
To determine if Imitrex works better than Excedrin, the most appropriate statistical test to use would be a "paired t-test."
We are comparing the efficacy of Imitrex and Excedrin for Migraine in the same group of 25 women, with each woman acting as her own control. You are measuring the time it takes for the headache to subside after administering each drug. To determine if Imitrex works better than Excedrin, the most appropriate statistical test to use would be a "paired t-test."
Step-by-step explanation:
1. Record the time it takes for the headache to subside after administering Excedrin and Imitrex to each woman.
2. Calculate the difference in time for each woman between the two drugs.
3. Compute the mean and standard deviation of these differences.
4. Perform a paired t-test to compare the mean difference to 0 (no difference between the two drugs).
5. Assess the p-value obtained from the t-test. If the p-value is less than the significance level (usually 0.05), then you can conclude that there is a statistically significant difference between the two drugs, suggesting that Imitrex works better than Excedrin in eliminating migraines.
Learn more about statistical test here:
https://brainly.com/question/14128303
#SPJ11
Verify that the segments are parallel.
10. CD || AB
This means that the corresponding sides of the two triangles are in proportion, and therefore CD is parallel to AB, as required.
What is triangle?A triangle is a polygon with three sides and three angles. It is one of the basic shapes in geometry and is often used in mathematics, science, engineering, and art. Triangles can be classified into different types based on the length of their sides and the size of their angles. Triangles are used in various applications, such as in the construction of buildings, bridges, and other structures, as well as in navigation and surveying. They are also important in various fields of mathematics, including trigonometry and geometry.
Here,
To use similarity theorems to show that CD is parallel to AB, we need to first establish that triangles AEB and CED are similar. If we can show that these triangles are similar, then we can use the corresponding angles theorem, which states that if two pairs of corresponding angles are congruent, then the lines containing the sides are parallel.
Let's compare the two triangles AEB and CED:
Angle AEB is congruent to angle CED (both are vertical angles).
Angle EAB is congruent to angle ECD (both are alternate interior angles formed by a transversal cutting parallel lines AB and CD).
Angle BAE is congruent to angle DCE (both are alternate interior angles formed by a transversal cutting parallel lines AB and CD).
Therefore, we have established that triangles AEB and CED are similar by the angle-angle-angle similarity theorem.
Now that we have shown that the triangles are similar, we can use the corresponding sides theorem, which states that the corresponding sides of similar triangles are in proportion, to find out if CD is parallel to AB.
The corresponding sides of AEB and CED are:
AE/CE = AB/CD
Substituting the given values, we have:
AC + CE / CE = AB / BD
4 + 12 / 12 = AB / (14/3)
16/12 = AB / (14/3)
AB = (16/12) x (14/3)
= 56/9
Now we can use the corresponding sides theorem to find the length of CD:
AE/CE = AB/CD
Substituting the values we have found, we get:
4/12 = (56/9)/CD
CD = (56/9) x (12/4)
= 14
Since we have found that AB = 56/9 and CD = 14, we can see that:
AB/CD = (56/9)/14
= 4/3
This means that the corresponding sides of the two triangles are in proportion, and therefore CD is parallel to AB, as required.
To know more about triangle,
https://brainly.com/question/28600396
#SPJ1
in a survey of 464 registered voters, 133 of them wished to see mayor waffleskate lose her next election. the waffleskate campaign claims that no more than 34% of registered voters wish to see her defeated. does the 98% confidence interval for the proportion support this claim? (hint: you should first construct the 98% confidence interval for the proportion of registered voters who wish to see waffleskate defeated.)
The Waffleskate campaign's claim that less than 34% of registered voters wish to see her defeated is not supported by the data, as the 98% confidence interval (0.236 to 0.336) for the proportion of voters who want her to lose does not include 0.34.
Why the 98% confidence interval for the proportion does not support this claim?To determine if the 98% confidence interval supports the Waffleskate campaign's claim that no more than 34% of registered voters wish to see her defeated, we need to construct the confidence interval and see if 34% falls within the interval.
The sample proportion of registered voters who wished to see Waffleskate lose her next election is 133/464 ≈ 0.286. To construct the 98% confidence interval for the true proportion, we can use the formula p ± Z√(pq/n), where p is the sample proportion, q is the complement of p, n is the sample size, and Z is the standard normal value corresponding to the desired confidence level.
Plugging in the values, we get:
p ± Z√(pq/n) = 0.286 ± 2.33√((0.2860.714)/464) ≈ 0.236 to 0.336
Therefore, the 98% confidence interval for the proportion of registered voters who wish to see Waffleskate lose her next election is 0.236 to 0.336. Since this interval does not include 0.34, the Waffleskate campaign's claim that no more than 34% of registered voters wish to see her defeated is not supported by the 98% confidence interval for the proportion.
Learn more about Waffleskate campaign's
brainly.com/question/14553449
#SPJ11
3(6+X) = 24
SOLVE THE EUATION
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Answer:
[tex]3(6+x)=24[/tex]
[tex]3x+18=24[/tex]
[tex]3x=6[/tex]
[tex]x=2[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
A washer and dryer cost a total of 924
. The cost of the washer is three times the cost of the dryer. Find the cost of each item.
Answer:
washer=693
dryer=231
Step-by-step explanation:
3x+x=924
4x=924
x=231
Hey I have some work rate math problems, if anyone can help me solve them id appreciate it.
The owner of a house require that the house be painted in 32 hours (4 work days). Mr. Paint, a painting contractor, would need 40 hours (5 days) to paint the house alone. To make sure the house is painted in 32 hours, Mr. Paint hires an assistant. How long would the assistant need to paint the house alone? ( for question 1,2 & 3)
1- Let x represent the amount of time the assistant would need to paint the house alone. Write an expression that shows the hourly rate at which Mr. Paint and his assistant work together to paint the house.
2- Now write an equation that can be used to determine the rate at which the assistant works.
3- If we know that the assistant works at a rate that would take him 160 hours to finish the job alone, and Mr. Paint receives $40 an hour for the job, how much should he pay his assistant?
4- Now consider a different scenario. A type of swimming pool holds 100 gallons of water. One hose can fill the pool in 12 hours while another takes only 10 hours. How long will it take for the pool to be filled if both hoses are used?
5- Working alone, a landscaper could build a retaining wall in 38 hours, while his apprentice could build the wall in 62 hours. If t represents the number of hours it would take them to build the wall while working together, which equation is correct?
6- Every night after closing, the moat in the hippopotamus exhibit at a zoo is drained and cleaned. The zoo currently has one pipe that can drain the moat in 50 minutes. It is considering installing a second pipe to speed up draining. The table below shows different times that the new pipe might take to drain the moat alone. In each row of the table, fill in the number of minutes it would take for both pipes to drain the pool simultaneously. Round your answers to the nearest tenth of a minute, when necessary.
Answer:
Step-by-step explanation:
1. 1/40 + 1/x
2. 1/32 = 1/40 +1/x
3. $8 per hour
4. about 5.5 hours
5. 1/38 + 1/62 = t/x
6.
1. 16.7
2. 22.2
3. 26.2
4. 29.2
nice pfp
___________ is the number of individual buy orders and the total number of shares that wish to buy.
Buy-side order flow is the number of individual buy orders and the total number of shares that wish to buy.
This is a crucial metric that is used by traders, investors, and analysts to gauge the demand for a particular security or asset.
The buy-side order flow refers to the number of shares that market participants want to purchase at a given time, and it provides valuable insights into the sentiment of the market. If there are more buy orders than sell orders, then there is a higher demand for the security, which can lead to an increase in the price of the asset. On the other hand, if there are more sell orders than buy orders, then there is a higher supply of the security, which can lead to a decrease in the price of the asset.
Traders and investors use buy-side order flow data to help them make informed decisions about when to buy or sell a security. By analyzing the number of buy orders and the total number of shares that wish to buy, they can identify trends and patterns in the market, and adjust their strategies accordingly. Additionally, buy-side order flow data can be used to help identify potential support and resistance levels for a security, which can be useful in setting stop-loss orders and other risk management measures.
Overall, the buy-side order flow is an important metric that provides valuable insights into the sentiment of the market and helps traders and investors make informed decisions about their investments.
To learn more about number here:
https://brainly.com/question/29595846
#SPJ4