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With the random sampling method, every item in the population has an equal chance of being chosen for the sample. Consequently, the process of chance sampling is another name for it.
What is the standard deviation?The population mean's likelihood to differ from a sample mean is indicated by the standard error of the mean, or simply standard error. It reveals how much the sample mean would change if a study were to be repeated with fresh samples drawn from a single population.
Therefore, if the impacts of the random changes are more pronounced, the standard error of the mean will be greater; conversely, if there are no random charges, the standard error of the mean will be zero. The formula for the mean's standard error is: M=N.
The sample data, test type, and sampling distribution of the test statistic under the null hypothesis are used to determine the p-value (lower-tailed test, upper-tailed test, or two-sided test). The formula for calculating the p-value for a lower-tailed test is: p-value = P(TS ts | H 0 is true) = cdf (ts).
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What is the measure of
Answer:
58 degrees
Step-by-step explanation:
90-32=58
You randomly draw twice from this deck of cards
What is the probability of drawing a 3, then drawing an even number without replacing the first card?
Answer:
probability: 1/10 or 10%
To find the value of the following expression, which task should be completed first?
Answer:
subtract inside the parentheses
Step-by-step explanation:
According to pemdas. It is parenthesis first so you subtr what’s inside first
Answer:
Subtract inside the parenthesis
Step-by-step explanation:
For this problems you have to follow PEMDAS which stand for
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
in that order
What is the contrapositive of the following conditional? If a number is divisible by 10, then it is divisible by 5.
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Answer: No because that is not always true.
Explanation:
I hope this helped!
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what is 1086.3961 rounded to the nearest square foot?
Help me pleaseeee i need to finish
Answer:
x=4
Step-by-step explanation:
trust me I got it right
Katie needs 3/4 cup of sugar to make cookies. She only has 1/3 cup. How much more sugar does Katie need?
Answer:
[tex]\frac{5}{12}[/tex] cups
Step-by-step explanation:
This question is asking for the difference between the two values so subtraction is necessary
[tex]\frac{3}{4} -\frac{1}{3}[/tex]
Multiply the top and bottom of the first fraction by 3 and the second one by 4[tex]\frac{3*3}{4*3} -\frac{1*4}{3*4} = \frac{9}{12} -\frac{4}{12}[/tex]
Now just substract
9 - 4 = 5 ==> [tex]\frac{9}{12} -\frac{4}{12} = \frac{5}{12}[/tex]
You are conducting a significance test of H0: μ = 5 against Ha: μ > 5. After checking the conditions are met from a simple random sample of 30 observations, you obtain t = 2.35. Based on this result, describe the p-value.
The p-value falls between 0.15 and 0.2.
The p-value falls between 0.025 and 0.05.
The p-value falls between 0.01 and 0.02.
The p-value falls between 0.005 and 0.01.
The p-value is less than 0.005.
Answer:
The p-value falls between 0.005 and 0.01.
Step-by-step explanation:
Random sample of 30 observations, you obtain t = 2.35
This means that the pvalue is 1 subtracted by the pvalue of Z = 2.35, as we are testing that the mean is more than a value.
Looking at the z-table, z = 2.35 has a pvalue of 0.9906
1 - 0.9906 = 0.0094
So, between 0.005 and 0.01.
Answer: The p-value falls between 0.01 and 0.02.
Step-by-step explanation: I took the FLVS test.
Find the volume of the cone. Round your answer to the nearest tenth
height is 22 meters and the radius is 11 meters
2787.64 is the volume..
PALEEZE Help Me!! The ceiling of Katie’s living room is a square that is 16 ft long on each side. To decorate for a party, she plans to hang crepe paper around the perimeter of the ceiling and then from each corner to the opposite corner. Katie can buy rolls that each contain 28 ft of crepe paper. What is the minimum number of rolls she should buy? Show your work and draw a diagram to support your answer.
Answer:
At least 4
Step-by-step explanation:
Photo of my work and where I got the equation from
During an economic downturn, 11 companies were sampled and asked whether they were planning to increase their workforce. Only 2 of the 11 companies were planning to increase their workforce. Use the small-sample method to construct an 80% confidence interval for the proportion of companies that are planning to increase their workforce. Round the answers to at least three decimal places.
An 80% confidence interval for the proportion of companies that are planning to increase their workforce is _______ < p< ________
Answer:
An 80% confidence interval for the proportion of companies that are planning to increase their workforce is 0.033 < p < 0.331.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
Only 2 of the 11 companies were planning to increase their workforce
This means that [tex]n = 11, \pi = \frac{2}{11} = 0.182[/tex]
80% confidence level
So [tex]\alpha = 0.2[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.2}{2} = 0.9[/tex], so [tex]Z = 1.28[/tex].
The lower limit of this interval is:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.182 - 1.28\sqrt{\frac{0.182*0.818}{11}} = 0.033[/tex]
The upper limit of this interval is:
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.182 + 1.28\sqrt{\frac{0.182*0.818}{11}} = 0.331[/tex]
An 80% confidence interval for the proportion of companies that are planning to increase their workforce is 0.033 < p < 0.331.
Write an equation of the line with the given slope and y-intercept:
m = -5,6 = 4
a. y = -5x + 4
b. y = 5x + 4
c. y = -5x-4
d. y = 5x - 4
Please select the best answer from the choices provided
Ο Ο Ο Ο
D
Answer:
a. y = -5x + 4
Step-by-step explanation:
Given the following data;
Slope, m = -5
Intercept, c = 4
Mathematically, the equation of line is given by the formula; y = mx + c
Where;
m is the slope.
x and y are the points
c is the intercept.
Substituting the given parameters, we have;
y = -5x + 4
can you break it down for me.
Answer:
m + 8 ≥ -8
Step-by-step explanation:
1st choice: WRONG
m + 8 ≤ -8
-3 + 8 ≤ -8
5 ≤ -8
2nd choice: WRONG
-m + 8 ≤ -8
-(-3) + 8 ≤ -8
11 ≤ -8
3rd choice: RIGHT
m + 8 ≥ -8
-3 + 8 ≥ -8
5 ≥ -8
4th choice: WRONG
-m + 8 ≤ -8
-(-3) + 8 ≤ -8
11 ≤ -8
This is hard for me but easy for you so what’s the answer ?
Step-by-step explanation:
112=35+d
112-35=d
d=77
Can someone help me? I am stuck on this question I would mean the world if u helped me! and tysm for the people who helped me!
Can someone help meeee plz and no link plz is due in 9 minutes
Answer:
A (4,3)
Step-by-step explanation:
J is inside the parallelogram.
K is indside a trapezium.
So we want to find the coordinates of point J.
Reading from the scales, point J is x = 4 and y = 3.
Writing our answer in the form (x, y) coordinates of J are: (4,3)
i need help [lzzzzzzzzzzzzzzzzz
QUESTION
The first four terms of a quadratic sequence are 8; 11; 16; 23; .-
Write down the next two terms of the quadratic sequence.
J. 2 Calculate the nth of the quadratic sequence.
i: 5.3 Determine the position of the term 2311 in the sequence.
(1)
(4)
(3)
[8]
Answer:
b
Step-by-step explanation:
help me please :(*********
Answer:
These will be equal, so the answer is 7
Step-by-step explanation:
Set 2x+42 and 9x-7 equal to each other, then solve.
2x+42=9x-7
-2x +7 -2x +7
49=7x
x=7
A is the point (2, 3) and B is the point (7,-5).
Find the co-ordinates of the midpoint of AB.
Here we would be using the midpoint formula to find the co-ordinates of the line segment joining the two given points.
Given points,
(2 , 3) and (7 , -5)We have :
x₁ = 2x₂ = 7y₁ = 3y₂ = -5[tex] \red\bigstar[/tex]Midpoint of two points:-
[tex]\boxed{ \sf{M \: = \: \dfrac{x_1 \: + \: x_2 }{2} \: , \: \dfrac{y_1 \: + \: y_2 }{2}}} \: \pink\bigstar[/tex]Now, refer to the attachment.
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Date:
Convert (1020)5 to base ten numeral
Which of the following graphs are identical?
DONE.
Answer:
I think it's the 1st and 3rd
Step-by-step explanation:
with square root and squaring, being positive/negative doesn't effect the answer. you can use a calculator if u want.
square root of 3 = square root of -3
square root of X = square root of -X
Please help me i cannot understand these Questions
Answer:
In the last task, the result is 17+3x/6
Step-by-step explanation:
X+5/3 - 2x-7/6 + x/2
2(x+5)-(2x-7)+3x /6
2x+10-2x+7+3x /6
17+3x/6
I dunno this task above, I hope this one is correct :))
Complete the equation of the line through (1,4) and (2,2)
Use exact numbers.
y=?
Step-by-step explanation:
slope = 2-4/2-1 = -2
y - 2 = -2(x - 2)
y-2 = -2x +4
y = -2x + 6
Answer:
y = -2x + 6
Step-by-step explanation:
(y-4)/(2-4) = (x-1)/(2-1)
(y-4)/(-2) = x-1
y-4 = -2x +2
y = -2x + 6
Write an equation to represent the following statement.
you can only use ( -,+,*,x/y)
Answer:
well I think it's 22-14=x(represent J for X)
22-14=x
x=8
therefore 8is14less than 22help me with this plzzz
Answer:
b is the answer
Step-by-step explanation:
if you look at the graph chart you will notice that b lines up with negative 4 and positive 2
Which is bigger: 3 pints or 8 cups?
Answer:
8 cups is bigger
Step-by-step explanation:
3 pints = 6 cups
6 < 8
Help ill Mark brainlist :)
Answer:
The area would be 40.5 cm ^2
Step-by-step explanation:
Well first you don’t gotta worry about some isosceles trapezoid thingy.
You just gotta know the formula for a trapezoid is (b1+b2)/2)h
B1 in this case is or base 1 (9 or 4.5)
b2 in this case is or base 2 (9 or 4.5)
(you can only choose one base for each)
ANd you add those 2 up and you’d get 13.5
13.5/2 which is 6.75
Now we multiply it by the height which is 6 and gte 40.5
40.5cm ^2 is the final answer
Solve the difference of 9x and 8x is 107
Answer:
x = 107
Step-by-step explanation:
If x = 107,
(9 x 107) - (8 x 107) = 107
Then x must be 107.
Which equation has a solution of k = 3.5?
Answer:
an example of an equation?
if you want one step you can try
10k=35
if you want two step
10k-17=18
Step-by-step explanation: