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Author Question: "D" size batteries produced by MNM Corporation have had a life expectancy of 87 hours. Because of an ... (Read 23 times)

knightj

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on: Mar 25, 2023

"D" size batteries produced by MNM Corporation have had a life expectancy of 87 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 36 batteries showed an average life of 88.5 hours. Assume from past information that it is known that the standard deviation of the population is 9 hours.

a.Formulate the hypotheses for this problem.
b.Compute the test statistic.
c.What is the p-value associated with the sample results? What is your conclusion based on the p-value? Let α = .05.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by knightj on Mar 25, 2023

hvhf4k+549qz8f218jyo@shar

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Reply #1 on: Mar 25, 2023
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knightj

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Reply 2 on: Mar 25, 2023
Excellent

dantucker

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Reply 3 on: Yesterday
Wow, this really help

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