A Manufacturing Company Produces Part A732 for the Aerospace Industry

question 105

Multiple Choice

A manufacturing company produces part A732 for the aerospace industry.This particular part can be manufactured using 3 different production processes.The management wants to know if the quality of the units of part A732 is the same for all three processes.The production supervisor obtained the following data: Process 1 had 29 defective units in 240 items,Process 2 produced 12 defective units in 180 items,and Process 3 manufactured 9 defective units in 150 items.At a significance level of .05,we performed a chi-square test of independence to determine if the quality of the items produced appears to be independent of the production process.What are the degrees of freedom for the chi-square statistic?

• A)2
• B)3
• C)50
• D)520
• E)570

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Definitions:

Irrational Beliefs

Thoughts or beliefs that are not based on reality or rational logic, often leading to emotional and behavioral issues.

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