SCENARIO 10-12 A Quality Control Engineer Is in Charge of the Manufacture

question 142

True/False

SCENARIO 10-12
A quality control engineer is in charge of the manufacture of USB flash drives.Two different processes can be used to manufacture the flash drives.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 flash drives 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," perform the appropriate test at a level of significance of 0.01.
-Referring to Scenario 10-12,the same decision would be made if this had been a two-tail test at a level of significance of 0.01.

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Definitions:

Emergent Property

A property or quality that arises as an effect of complex interactions and interdependencies among components within a system, which cannot be predicted solely from knowledge of the individual parts.

Independent Variable

The variable in an experiment that is manipulated or changed to observe its effect on the dependent variable.

Dependent Variable

In an experiment, a variable presumed to be influenced by the independent variable being tested.

Experimental Group

In scientific research, the group of subjects that receive the treatment or condition being tested.