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

question 183

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, construct a 95% confidence interval estimate of the difference in proportion between the Kohler and Russell disks that are defective.

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Definitions:

Charge Customers

The act of requesting payment from consumers for goods or services provided.

Bundled Price

A pricing strategy where multiple products or services are sold together at a single, combined price, often at a discount to purchasing them separately.

Unit Price

The cost for a single unit of a product, service, or measure of quantity, used for price comparison and economic decision making.

Price Discriminate

The practice of selling the same product to different consumers at different prices based on their willingness to pay.