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 selected independent samples from each process. The results of the samples and the population standard deviation are shown below. Process A Process B Sample Size 32 35 Sample Mean (in minutes) 43 47 Population standard deviation (σ) 8 8.367 1. Management wants to test whether Process B takes longer than Process A so the what is the value of the test statistic? Round your answer to three decimal places. 2. Refer to Question 1. What is the p-value associated with the test statistic? Round your answer to three decimal places. 3.Refer to Question 1. At 0.05 level of significance what is the critical value associated with this hypothesis test? Round your answer to three decimal places. 4.Refer to Questions 1, 2 & 3. The appropriate conclusion is the Group of answer choices a. average time of Process B is significantly greater than Process A. b. test is inconclusive. c. average time of Process B is not significantly greater than Process A.

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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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 selected independent samples from each process. The results of the samples and the population standard deviation are shown below.

	Process A	Process B
Sample Size	32	35
Sample Mean (in minutes)	43	47
Population standard deviation (σ)	8	8.367

1. Management wants to test whether Process B takes longer than Process A so the what is the value of the test statistic? Round your answer to three decimal places.

2. Refer to Question 1. What is the p-value associated with the test statistic? Round your answer to three decimal places.

3.Refer to Question 1. At 0.05 level of significance what is the critical value associated with this hypothesis test? Round your answer to three decimal places.

4.Refer to Questions 1, 2 & 3. The appropriate conclusion is the

Group of answer choices

a. average time of Process B is significantly greater than Process A.

b. test is inconclusive.

c. average time of Process B is not significantly greater than Process A.

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