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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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Nikolas Nikolas
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A year ago

"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.

Textbook 
Essentials of Statistics for Business and Economics

Essentials of Statistics for Business and Economics


Edition: 7th
Authors:
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revanchistrevanchist
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A year ago
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Nikolas Author
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A year ago
Brilliant ツ
hpascoe
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
Goku935
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2 hours ago
Good timing, thanks!
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