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

question 140

Short Answer

SCENARIO 10-12
A quality control engineer is in charge of the manufacture of USB flash drives.Two different processes can be used to manufacture the flash drives.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 flash drives 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 Scenario 10-12,construct a 99% confidence interval estimate of the difference in proportion between the Kohler and Russell flash drives that are defective.

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Definitions:

Customer Payments

The payments made by customers for products or services received from a company.

Zero-balance Account

A banking arrangement where a company’s bank account is maintained at a zero balance, with funds being transferred from a master account as needed.

Disbursement Purpose

The specific reason or objective for which funds are paid out or disbursed in a financial transaction.

Cheques Presented

Refers to the cheques that have been submitted to a bank for payment and are pending clearance.