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

Maxforce, Inc., manufactures racquetball racquets by two different manufacturing processes (A and B). Because the management of this company is interested in estimating the difference between the average time it takes each process to produce a racquet, they select independent samples from each process. The results of the samples are shown below.

 

Process A

Process B

Sample Size

32

35

Sample Mean (in minutes)

43

47

Population Variance (σ2)

64

70


a.Develop a 95% confidence interval estimate for the difference between the average time of the two processes.
b.Is there conclusive evidence to prove that one process takes longer than the other? If yes, which process? Explain.

Textbook 
Essentials of Statistics for Business and Economics

Essentials of Statistics for Business and Economics


Edition: 7th
Authors:
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sherry94sherry94
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A year ago
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denausor Author
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A year ago
Helped a lot
mikeh209
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Yesterday
Smart ... Thanks!
vernonb
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2 hours ago
This site is awesome
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