(a) What are the null hypothesis H, and the alternative hypothesis H, that should be used for the test? (b) Suppose that the group decides not to reject the null hypothesis. What sort of error might it be making? (Choose one) ▼ (c) Suppose the true mean monthly mileage of cars rented in the U.S. this year is 2915. Fill in the blanks to describe a Type II error. A Type II error would be (Choose one) the hypothesis that u is (Choose one) (Choose one) when, in fact,H is (Choose one)
(a) What are the null hypothesis H, and the alternative hypothesis H, that should be used for the test? (b) Suppose that the group decides not to reject the null hypothesis. What sort of error might it be making? (Choose one) ▼ (c) Suppose the true mean monthly mileage of cars rented in the U.S. this year is 2915. Fill in the blanks to describe a Type II error. A Type II error would be (Choose one) the hypothesis that u is (Choose one) (Choose one) when, in fact,H is (Choose one)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like to do a statistical test regarding
the mean mnonthly mileage, u, of cars rented in the U.S. this year. The consumer group has good reason to believe that the mean monthly mileage of cars
rented in the U.S. this year is greater than last year's mean, which was 2750 miles.
The group plans to do a statistical test regarding the value of u. It chooses a random sample of monthly mileages and computes the mean of the sample to be
2900 miles and the standard deviation to be 700 miles.
Based on this information, complete the parts below.
(a)
What are the null hypothesis H, and the alternative hypothesis H, that should be used for the test?
H.:
O<O
H :
D=0
(b) Suppose that the group decides not to reject the null hypothesis. What sort of error might it be making?
(Choose one) ▼
(c) Suppose the true mean monthly mileage of cars rented in the U.S. this year is 2915. Fill in the blanks to describe a Type II
error.
A Type II error would be (Choose one)
▼ the hypothesis that µ is (Choose one).
(Choose one) ▼
when, in fact, H is (Choose one)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F915c192e-d8ba-4859-b60e-5e514228af12%2Fb6e8818f-af02-4488-96c2-0d8ebd641e31%2Fjvnf1xh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like to do a statistical test regarding
the mean mnonthly mileage, u, of cars rented in the U.S. this year. The consumer group has good reason to believe that the mean monthly mileage of cars
rented in the U.S. this year is greater than last year's mean, which was 2750 miles.
The group plans to do a statistical test regarding the value of u. It chooses a random sample of monthly mileages and computes the mean of the sample to be
2900 miles and the standard deviation to be 700 miles.
Based on this information, complete the parts below.
(a)
What are the null hypothesis H, and the alternative hypothesis H, that should be used for the test?
H.:
O<O
H :
D=0
(b) Suppose that the group decides not to reject the null hypothesis. What sort of error might it be making?
(Choose one) ▼
(c) Suppose the true mean monthly mileage of cars rented in the U.S. this year is 2915. Fill in the blanks to describe a Type II
error.
A Type II error would be (Choose one)
▼ the hypothesis that µ is (Choose one).
(Choose one) ▼
when, in fact, H is (Choose one)
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
Step 1
The type I error is defined as the rejecting the null hypothesis when actually it is true.
The type II error is defined as the accepting the null hypothesis when alternative is true.
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