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

question 78

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 99% confidence interval estimate of the difference in proportion between the Kohler and Russell disks that are defective.

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Definitions:

Southern India

A region in India that includes the states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu, and Telangana, known for its distinct languages, cultures, and histories.

Dominant Buddhism

Refers to regions or societies where Buddhism is the most prevalent or influential religion.

Mandala

Sanskrit term for the sacred diagram of the universe; Japanese, mandara.

Borobudur

A 9th-century Mahayana Buddhist temple in Java, Indonesia, featuring a monumental step pyramid structure adorned with elaborate reliefs.