The manufacturer of a certain brand of auto batteries claims that the mean life of these batteries is 45 months. A consumer protection agency that wants t check this claim took a random sample of 24 such batteries and found that the mean life for this sample is 43.35 months. The lives of all such batteries haw a normal distribution with the population standard deviation of 4.5 months. Find the p-value for the test of hypothesis with the alternative hypothesis that the mean life of these batteries is less than 45 months. Round your answer to four decimal places. p=L Will you reject the null hypothesis at a = 0.025?

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Chapter 09, Section 9.2, Problem 025a
The manufacturer of a certain brand of auto batteries claims that the mean life of these batteries is 45 months. A consumer protection agency that wants to
check this claim took a random sample of 24 such batteries and found that the mean life for this sample is 43.35 months. The lives of all such batteries have
a normal distribution with the population standard deviation of 4.5 months.
Find the p-value for the test of hypothesis with the alternative hypothesis that the mean life of these batteries is less than 45 months.
Round your answer to four decimal places.
Will you reject the null hypothesis at a = 0.025?
the tolerance is +/-2%
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Transcribed Image Text:Downloadable eTextbook ment FULL SCREEN PRINTER VERSION 1 BACK NEXT Chapter 09, Section 9.2, Problem 025a The manufacturer of a certain brand of auto batteries claims that the mean life of these batteries is 45 months. A consumer protection agency that wants to check this claim took a random sample of 24 such batteries and found that the mean life for this sample is 43.35 months. The lives of all such batteries have a normal distribution with the population standard deviation of 4.5 months. Find the p-value for the test of hypothesis with the alternative hypothesis that the mean life of these batteries is less than 45 months. Round your answer to four decimal places. Will you reject the null hypothesis at a = 0.025? the tolerance is +/-2% Question Attempts: 0 of 2 used SAVE FOR LATER SUBMIT ANSWER powered by MapleNet Policy 2000-2020 John Wiley & Sons, Inc. All Rights Reserved. A Division of John Wiley & Sons, Inc. Version 4.24.20.1 tv hulu W
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