Answered: Allstate Batteries advertises and sells…

Name: Allstate Batteries advertises and sells a 4 year (48 months) battery.
Uploaded: 2024-03-20T07:07:12.000Z
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Description: Allstate Batteries advertises and sells a 4 year (48 months) battery. You work at Consumer Digest, a consumer advocacy organization, and have been receiving complaints from consumers who felt they were not receiving their full 48 months. Test Allst

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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Allstate Batteries advertises and sells a 4 year (48 months) battery. You work at Consumer Digest, a consumer advocacy organization, and have been receiving complaints from consumers who felt they were not receiving their full 48 months. Test Allstate’s claim that these are 48 month batteries at the 5% level of significance. You have tested a sample of 36 cars and found a mean of 45months and a standard deviation of 1 month. State the appropriate hypotheses from the consumers’ point of view, show drawing and appropriate critical value, compute the appropriate test statistic, accept(fail to reject)/reject the null hypothesis and draw conclusion. Do you believe the batteries are as advertised?

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