A Manufacturing Company Produces Part QV2Y for the Aerospace Industry

question 9

Multiple Choice

A manufacturing company produces part QV2Y 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 QV2Y 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:

Deception

The act of misleading or lying to others, often to gain an advantage or hide the truth.

Debriefing

The postexperimental explanation of a study, including its purpose and any deceptions, to its participants.

Research Participants

Individuals who take part in a research study, often providing data through their responses, behavior, or biological samples.

Critical Thinking

The process of actively analyzing, synthesizing, and evaluating information to reach conclusions, make decisions, or solve problems.