The diameter of a ball bearing was measured by an inspector using a new type of caliper.

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The diameter of a ball bearing was measured by an inspector using a new type of caliper. The results were as follows (in mm): 0.265, 0.263, 0.266, 0.267, 0.267, 0.265, 0.267, 0.267, 0.265, 0.268, 0.268, and 0.263.

(a) Use the Wilcoxon signed-rank test to evaluate the claim that the mean ball diameter is 0.265 mm. Use 0.05.

(b) Use the normal approximation for the test. With 0.05, what conclusions can you draw?

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Applied Statistics And Probability For Engineers

ISBN: 9780470053041

5th Edition

Authors: Douglas C. Montgomery, George C. Runger

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Question Posted: Nov 07, 2024 07:00 AM

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The diameter of a ball bearing was measured by an inspector using a new type of caliper.

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Applied Statistics And Probability For Engineers

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