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

question 32

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, construct a 90% confidence interval estimate of the difference in proportion between the Kohler and Russell disks that are defective.

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Definitions:

Limited Resources

The finite availability of inputs (like labor, capital, and land) that are used for the production of goods and services.

Economics

A branch of social science that examines the methods by which people, governmental bodies, corporations, and states allocate finite resources to meet their infinite needs.

Opportunity Cost

The cost of foregone alternatives when a decision is made, essentially what is given up to undertake a certain action.

Alternative Use

speaks to the different ways an asset or resource can be utilized outside its current application, highlighting its opportunity cost.