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 regardingthe mean monthly mileage, μ, of cars rented in the U.S. this year. The consumer group has good reason to believe that the mean monthly mileage of carsrented in the U.S. this year is different from last year's mean, which was 2800 miles.The group' plans to do a statistical test regarding the value of μ. It chooses a random sample of monthly mileages and computes the mean of the sample to be2665 miles and the standard deviation to be 800 miles.Based on this information, complete the parts below.(a) what are the null hypothesis Ho and the alternative hypothesis H₁ that should be used for the test?0Ho :OH₁ :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 2650. Fill in the blanks to describe aType II error.A Type II error would be (Choose one)(Choose one) when, in fact, u is (Choose one)XWthe hypothesis that u is (Choose one)U²0XOSO0=0Ś☐>O

Answered: A consumer advocacy group is doing a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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F budy 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 monthly mileage, μ, 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 2700 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 2800 miles and the standard deviation to be 750 miles. Based on this information, complete the parts below. (a) What are the null hypothesis Ho and the alternative hypothesis H₁ that should be used for the test? H₂ : Η H₁ :0 (b) Suppose that the group decides 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 2700. Fill in…
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