Answered: The manufacturer of a certain brand of…

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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Transcribed Image Text:Chapter 09, Section 9.2, Problem 025a NEXT 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 43.05 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. p = Will you reject the null hypothesis at a = 0.025? Do not reject the null hypothesis. Reject the null hypothesis. Question Attempts: 0 of 2 used SAVE FOR LATER SUBMIT ANSWER powered by dy MapleNet Version 4.24.20.1 Privacy Policy I © 2000-2020 John Wiley & Sons, Inc, All Rights Reserved. A Division of John Wiley & Sons, Inc. MacBook Air DII DD 80 888 F12 11 F9 F10 F8 F6 F7 F4 F5 F1 F2 F3 & @ %23 $ delete %3D 4 6. 7 8.

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