A Quality Control Engineer Is in Charge of the Manufacture $\chi ^ { 2 }$

question 41

Multiple Choice

A quality control engineer is in charge of the manufacture of computer disks. Two different processes can be used to manufacture the disks. He suspects that the Kohler method produces a
Greater proportion of defects than the Russell method. He samples 150 of the Kohler and 200 of
The Russell disks and finds that 27 and 18 of them, respectively, are defective. If Kohler is
Designated as "Group 1" and Russell is designated as "Group 2," which of the following tests will
You use to find out if the Kohler method is worse than the Russell method?

• A) Paired t test.
• B) Z test for difference in proportions.
• C) \(\chi ^ { 2 }\) test for difference in proportions.
• D) Kruskal-Wallis rank Test.

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Definitions:

Transactional Analysis

A psychotherapeutic theory and method exploring the interactions (transactions) between individuals based on the ego states of Parent, Adult, and Child.

Motivation

The process that initiates, guides, and maintains goal-oriented behaviors.

Ego States

Refers to the different facets of our personality that manifest in our behaviors and interactions, such as the Parent, Adult, and Child in transactional analysis.

Transaction

An exchange or interaction between people, which can be financial, emotional, or social.