"D" size batteries produced by M&M Corporation have had a maximum life expectancy of 350 hours. Because of an improved production process, it is believed that there has been an increase in the life expectancy of its "D" size batteries. A sample of 81 batteries showed an average life of 354 hours with a sample standard deviation of 18 hours. a) State the null, Ho, and alternative, Ha, hypotheses for this problem if you want to determine if the improved production increased the life expectancy of the batteries b) What is your test statistic? c) Using the critical value approach, test at the 99% confidence level to determine if there was an increase in the life expectancy of the batteries? (i.e. indicate if we should reject Ho or fail to reject Ho and TS and CV comparison) In your CV comparison, include values in your comparisons and clearly label the TS value and the CV value. (If not sure of answer, GUESS REJECT OR FAIL TO REJECT) d) Based on rejecting Ho or failing to reject Ho, what is your conclusion regarding if there was an increase in the life of the batteries?

"D" size batteries produced by M&M Corporation have had a maximum life expectancy of 350 hours. Because of an improved production process, it is believed that there has been an increase in the life expectancy of its "D" size batteries. A sample of 81 batteries showed an average life of 354 hours with a sample standard deviation of 18 hours. a) State the null, Ho, and alternative, Ha, hypotheses for this problem if you want to determine if the improved production increased the life expectancy of the batteries b) What is your test statistic? c) Using the critical value approach, test at the 99% confidence level to determine if there was an increase in the life expectancy of the batteries? (i.e. indicate if we should reject Ho or fail to reject Ho and TS and CV comparison) In your CV comparison, include values in your comparisons and clearly label the TS value and the CV value. (If not sure of answer, GUESS REJECT OR FAIL TO REJECT) d) Based on rejecting Ho or failing to reject Ho, what is your conclusion regarding if there was an increase in the life of the batteries?

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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