46. A tire manufacturer has been producing tires with an average life expectancy of 26,000 miles. Nowthe company is advertising that its new tires' life expectancy has increased. In order to test the legitimacyof the advertising campaign, an independent testing agency tested a sample of 6 of their tires and hasprovided the following data.Life Expectancy(In Thousands of Miles)282725282925Determine the mean and the standard deviation.a.At the .01 level of significance using the critical value approach, test to determine whether ornot the tire company is using legitimate advertising. Assume the population is normallyb.distributed.ANSWER: a. X- 27,s = 1.67 (rounded)Ho: 4 <26 (in thousands of miles)Ha: 4 > 26 (in thousands of miles)Since t= 1.467 <3.365, do not reject Họ and conclude that there is insufficient evidenceto support the manufacturer's claim.b.

Null Hypothesis:µ=26.Alternative Hypothesis:µ>26.The test is a right-tailed test.Since the…

Answered: 46. A tire manufacturer has been…

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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