Instruction 10-14 A Quality Control Engineer Is in Charge of the Manufacture

question 51

Short Answer

Instruction 10-14
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 Instruction 10-14,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:

Supply Chain

An arrangement involving various companies, personnel, operations, knowledge, and materials dedicated to transporting a product or service from its origin to the consumer.

Shipper

This is an individual or company that sends or transports goods from one place to another, often involved in logistics and supply chain operations.

Receiver

A person or entity legally appointed to manage the financial affairs of a company or individual in cases such as bankruptcy.

Supply Chain

A network between a company and its suppliers to produce and distribute a specific product to the final buyer.