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

question 31

True/False

TABLE 10-12
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 10-12, the null hypothesis should be rejected.

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Definitions:

Marginal Cost

The financial implication of creating an extra unit of a product or service.

Fixed Cost

Costs that do not change with the level of output or production, such as rent or salaries.

Profits

The financial gain realized when the revenue from selling goods or services exceeds the costs, taxes, and expenses involved in its provision.

Efficient Solution

An outcome in which resources are allocated in the most effective manner, maximizing utility or benefit without waste.