"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 ? = .05.
a. H0: ? ? 87
Ha: ? > 87
b. Z = 1
c. p-value = 0.1587; therefore, do not reject H0
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A) ?deficit. B) ?retained loss. C) ?retained debit. D) ?other comprehensive loss.
Answer the following statements true (T) or false (F)
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A. Choice A B. Choice B C. Choice C D. Choice D
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Answer the following statement true (T) or false (F)