In the given scenario, one can use only non-parametric tests as the distribution is not normal.
Statistically speaking, normality means the distribution of data or variables following a normal distribution, also known as a Gaussian distribution or bell curve.
a. Since the standard deviation of the population is not known, Z-test cannot be run.
b. According to the thumb rule, for approximation to normality by using the central limit theorem, the minimum sample size is required to be 30.
With a sample size of 7, normality cannot be assumed.
So, a t-test with approximating the distribution with normal distribution would not be appropriate to run.
c. Without normality assumptions, one can't run a t-test because the t-test's basic assumption is the normality of the distribution.
So, all the options are incorrect which leaves us with the option d. None of the above would be appropriate tests.
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Is this correct? , if not can u help me
Answer:
Step-by-step explanation:
Yes that is absolutely correct according to me answer A
Answer: Yes, you are correct.
Step-by-step explanation:
A train travels 65 miles and then stops in a city. Then it travels at a speed of 95 miles per hour before reaching its last stop. Enter a linear model which represents the total distance traveled, d, by the train, as a function of t, the number of hours after leaving the city.
Answer:
Step-by-step exp
Find the compound amount on an investment of $8,500 at 7.5% compounded daily for 3.5 years.
Answer:
Accrued Amount: 10955.51, Total Interest: 2455.51
Step-by-step explanation:
A = P(1+r/n)nt
CI = A-P
Where,
CI = Compounded interest
A = Final amount
P = Principal
t = Time period in years
n = Number of compounding periods per year
r = Interest rate
PLZ ANSWER NO FAKE LINKS AND DONT SAY I READY ISNT ALLOWED
Answer:
A. 266
Step-by-step explanation:
Answer:
266
Step-by-step explanation:
285+127-146=266
enlarge the line by scale factor-2,with point (6,5)as the centre of enlargement.Mark the ends of your lines with crosses using the cross-drawing tool
Dilation involves changing the size of a figure
The endpoints of the image are (-2,-1) and (6,1)
How to determine the coordinates of the imageThe coordinates of the pre-image are give as:
(2,2) and (6,2)
The scale factor is given as:
k = 2
The center of dilation is given as:
(a,b) = (6,5)
The coordinates of the image are then calculated as:
[tex](x,y) \to (k(x -a) + a, k(y -b) + b)[/tex]
For (2,2), we have:
[tex](x,y) \to (2(2 -6) + 6, 2(2 - 5) + 5)[/tex]
[tex](x,y) \to (-2, -1)[/tex]
For (6,2), we have:
[tex](x,y) \to (2(6 -6) + 6, 2(2 - 5) + 5)[/tex]
[tex](x,y) \to (6, -1)[/tex]
Hence, the endpoints of the image are (-2,-1) and (6,1)
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square root of 10x^3yz5n21
Answer: 5
Step-by-step explanation:
please help me find x, y, and z
9514 1404 393
Answer:
x = 4y = 45z = 4Step-by-step explanation:
Since this is a right triangle, the acute angles are complementary.
y° = 90° -45°
y° = 45°
__
The two acute angles are congruent, so the triangle is isosceles. That is, x = z. The Pythagorean theorem tells you the relation between the sides of the triangle:
x² + z² = (4√2)²
x² +x² = 4²×2 . . . substitute x for z, since they are equal
x² = 4² . . . . . . . divide by 2
x = 4 . . . . . . . . .take the positive square root
z = 4 . . . . . . . . same as x
__
Additional comment
Whenever you see a 45° angle in a right triangle you know immediately that it is isosceles, and that the ratios of the side lengths are 1 : 1 : √2. This is one of two "special" triangles that have angles and side ratios that are not difficult to remember.
The hypotenuse here is 4√2, so the other sides are 4.
x : z : 4√2 = 1 : 1 : √2 = 4 : 4 : 4√2
x = z = 4
Round 0.766 to the nearest 10th
Answer:
0.766 rounded to the nearest tenth = 0.8
Step-by-step explanation:
To round 0.766 to the nearest tenth consider the hundredths’ value of 0.766, which is 6 and equal or more than 5. Therefore, the tenths value of 0.766 increases by 1 to 8.
Answer:
The answer is 0.8 trust me
pls help
i’m so confused on this
Answer:
√(100)
Step-by-step explanation:
√(5) × √(20)
√(5 × 20)
√(100)
There are 4 boys and 2 girls from the 7th grade and 3 boys and 5 girls from the 8th grade on the soccer team. The coach will pick one captain from each grade. What is the probability that he will pick a boy from the 7th grade and a girl from the 8th grade?
Answer:
5/12
Step-by-step explanation:
P(b,7) = 4/6
P(g,8) = 5/8
4/6 x 5/8 = 20/48 (or 5/12 reduced)
100 pts plz someone help asappp
∠1=45°
∠2=135°
∠3=45°
∠4=135°
Answer:
∠1=45°
∠2=135°
∠3=45°
∠4=135°
Step-by-step explanation:
This question confuses me, and I am not understanding it.
Answer: As n increases, p increases.
The question is asking you about the equation of a line, p=2n-10
The equation of a line is y=mx+b
In this equation, m is the slope (how much you go up or down and then over)
In this equation, b is the y-intercept (where it intersects with the y line at 0)
Now with this knowledge, p=2n-10
P stands for y and N stands for x (its the same thing even if different)
2n means the m=2
Since the slope is positve it goes up 2 and then right 1
The y-int is -10
Now the options want to know what happens as n increases
Since the slope is positive when the x increases you know that the y increases so
As n increases, p increases.
(also i attached what the graph looks like)
I hope this explanation could help, please let me know if you do not understand still and if you could mark brainliest I would greatly appreciate it.
Answer: as n increases p increases
Step-by-step explanation:
A stapler company checked its inventory for defective products on a random sample of 750 staplers. The company identified that 200 staplers were defective.
To the nearest percent, what is a good estimate of the percentage of all staplers at the company that are defective?
Question 3 options:
27%
550%
4%
someone help me pls i will give brainlist
write only answers
I hope it's clear enough.
7.) What is the base of the triangle with height of 7 and area of 49?
Answer:
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
Area of tri= bxh/2
you need=bx7/2=49
49x2=98
that means 7 x b=98
98/7=14
Tickets for the school play sell for $4 each. Which graph shows the relationship between the number of tickets solo
(x) and the total income from the tickets (y)?
Answer:
I do not see all the graphs but it would be the reverse of what is shown for A. graph. The tickets sold to total income would have to be a 1:4 ratio where every 4 dollar leap in the y-axis is a one point (1 unit change in x).
Step-by-step explanation:
Four gardeners record the weight, in pounds, of 5 pumpkins they grew. Which statement about the weights of the pumpkins is true? Gardener Kylie Mark Todd Greg Pumpkin Weights (lbs) 20, 21, 33, 40, 29 14, 19, 45, 20, 22 15, 15, 15, 30, 22 33, 34, 36, 39, 33
Answer:
Last Option: The range of weights for Greg's pumpkins is the least
Step-by-step explanation:
iReady Diagnostic
only need help on number 1
Answer:
It can't
Step-by-step explanation:
I cannot represent values of a funcion because if you convert all the sets into fractions, (if simplified) then they will not be the same fraction. This is needed if you want a function that works.
The fractions are: 1/7, 3/16, 5/19, 1/4, 9/28. if simplified, then these are different fractions.
Additionally, you can see that it has both 5/19 and 5/20. (1/4).
If this was a working function it would yield the same output every time you put in 5 as an input.
Therefore, it cannot represent a function.
HAVE A GREAT DAY :D
Enter a linear equation that models the situation.
A drugstore sells pens for $1.30 each and notebooks for $3 each. The owner would like to sell $35 of
these items each day. Use p for the number of pens and n for the number of notebooks.
A linear equation that models the situation is
= 35.
Answer: 1.30p + 3n = 35
Step-by-step explanation:
Find the measure of 6
Answer:
6=101°{alternet exterior angle}
hope it helps.
Joe has a bag of marbles. There are 2 purple, 1 red, and 3 green marbles in the bag. Joe selects a marble, does not replace it before selecting a second marble. What is the probability that Joe will select a green marble, then a red marble?
Answer:
1/10
Step-by-step explanation:
There are 6 marbles in the bag. 3 out of 6 are green.
3/6 = 1/2
So, he has a 1/2 of picking a green marble.
After getting a green marble, Joe doesn’t replace it meaning there are now only 5 marbles in the bag.
Since there’s one red marble in the bag the chance of trying one is 1/5.
Now to find the chance or drawing a green and red marble you need to do the equation:
1/2 x 1/5
This equals 1/10.
The probability is 1/10
HELP MEEE
Manny had to guess a chosen number
from 5 to 10 (including 5 and 10) What's the
probability he'll choose the correct number?
Answer:
1/6
Step-by-step explanation:
Since there are 6 numbers in the possibilities and he only gets to choose once it will be 1/6
What year was the Jamestown settlement established
Answer:
1607
Step-by-step explanation:
can someone answer this is important
Answer: A = 1350 cm²
Step-by-step explanation:
The surface area of a cube is A = 6 . a²
That means A = 6 . 15²
A = 1350 cm²
Hope that helps
PLease HELPPPpP someone who is good at math PLS
Answer:
I think it would be A not sure tho
Step-by-step explanation:
complete the table for the given rule.
Rule:Y=x-3
Please help me and I need the answers
Answer:
First blank = 4
Second blank = 4
Third blank = 10
Step-by-step explanation:
When you have the x value, just subtract 3 to get the y value, and when you have the y value, add 3 to get the x value.
Hopefully this helps- let me know if you have any questions!
2. A model of a house is shown.
6x-4
+ 12x + 3
14x + 13
What is the perimeter, in units, of the model?
A. 32x + 12
B. 46x + 25
C. 50x + 11
D. 64x + 24
Answer:
the answer is c 50x +11
Step-by-step explanation:
The Perimeter of the model is (50x + 11).
What is Perimeter?A shape's perimeter is calculated mathematically using the idea of perimeter. You sum together the lengths of all the sides to find the perimeter.
We have,
The two sides of the triangle are 6x - 4 units each.
The length of the rectangle is 14x + 13.
The width of the rectangle is 12x + 3.
So, the perimeter of the house
= (6x -4) + (14x + 13) + (12x + 3) + 12x + 3 + 6x -4
= 50x + 11
Thus, the perimeter is 50x + 11.
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Mackenzie put $6,000.00 in a retirement account that offers 11% interest compounded annually. She makes no additional deposits or withdrawals. How much interest will she have earned at the end of 6 years? Make sure you round to the nearest hundreth!
Answer:
$39,960
Step-by-step explanation:
11% of 6000
= 11/100 × 6000
=$660
Year 1=$6,660.00
Year 6= $6,660.00 × 6 years
=$39, 960.00
What is the value of the expression below?
64^1/3
Answer:4
Step-by-step explanation:
Just did this question
Help ASAP. 25 Points.
Find the length of the legs.
Answer:
Yellow side=6 units
Green side=6 units
Step-by-step explanation: