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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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RENCEE72 RENCEE72
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6 years ago
A producer of various kinds of batteries has been producing D size batteries with a life expectancy of 87 hours. Due to an improved production process, management believes that there has been an increase in the life expectancy of their D size batteries. A sample of 36 batteries showed an average life of 88.5 hours. It is known that the standard deviation of the population is 9 hours.
 a. Give the null and the alternative hypotheses.
  b. Compute the test statistic.
  c. At the 1 level of significance using the critical value approach, test management's belief.
  d. What is the p-value associated with the sample results? What is your conclusion based on the p-value using  = .01?
  e. What is your conclusion based on the p-value using  = .05?
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preetpatel94preetpatel94
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RENCEE72 Author
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6 years ago
Just got PERFECT on my quiz
Jodias
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Yesterday
Thank you, thank you, thank you!
kriggs62
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2 hours ago
Thanks
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