TABLE 10-13 A Quality Control Engineer Is in Charge of the Manufacture

question 88

Short Answer

TABLE 10-13
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," perform the appropriate test at a level of significance of 0.01.
-Referring to Table 10-13, the value of the test statistic is _______.

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Definitions:

Supplies

Materials, tools, or items required for carrying out a particular task or for the operation of a business.

Neutralizer

A factor in the environment or in an individual's makeup that counteracts the influence of another factor, such as a leadership trait.

Moderator Variable

A variable that affects the strength or direction of the relationship between an independent and a dependent variable in research.

Objectives

Specific, measurable goals that are established to guide efforts towards achieving broader aims.