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Name: The operations manager of a company that manufactures car mufflers wan
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Description: The operations manager of a company that manufactures car mufflers wants to determine whether there are any differences in the quality of workmanship among the three daily shifts. The manager randomly selects 500 car mufflers and carefully inspects t

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The operations manager of a company that manufactures car mufflers wants to determine whether there are any differences in the quality of workmanship among the three daily shifts. The manager randomly selects 500 car mufflers and carefully inspects them. Each muffler is either classified as perfect, satisfactory, or defective, and the shift that produced it is also recorded. The two categorical variables of interest are: shift and condition of the muffler produced. The data can be summarized by the two-way cross tabulation table. DO these data provide sufficient evidence at the 5% Significance level to infer that there are differences in quality among the three shifts? Satisfactory Defective Total Shift 1 116 112 230 Shift 2 65 148 Shift 3 27 78 107 Total 208 269

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