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:

Positive Reinforcement

A method of encouraging desired behavior by rewarding it, thus increasing the likelihood of the behavior being repeated.

OB Mod

Organizational Behavior Modification, a theory that focuses on influencing individual or group behaviors within an organization through a system of rewards and punishments.

Punishment

The imposition of a penalty as a response to an undesirable behavior or action, aimed at reducing or eliminating that behavior.

Operant Conditioning

is a learning process through which the strength of a behavior is modified by reinforcement or punishment.