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

question 69

Short Answer

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 value of the test statistic is ________.

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Definitions:

Annual Return

The percentage of profit or loss on an investment over a one-year period.

Interest Rate

The cost of borrowing money or the reward for saving, typically expressed as a percentage of the principal.

Entrepreneurial Innovation

The process by which an entrepreneur designs, develops, and brings to the market a novel product or service that potentially changes industry patterns or consumer habits.

Subsidize

To provide financial support or assistance, often by the government, to lower the cost of producing goods or services.