TABLE 10-13 A Quality Control Engineer Is in Charge of the Manufacture

question 93

True/False

TABLE 10-13
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 10-13, the same decision would be made with this test if the level of significance had been 0.05 rather than 0.01.

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Definitions:

Scar

Fibrous tissue replacing normal tissues; also called cicatrix.

Secondary Union

The healing of a wound or bone fracture over an extended period, typically resulting in scar formation.

Edema

Edema is a medical condition characterized by an excess accumulation of fluid in the body's tissues, causing swelling.

Epithelial Tissue

A kind of tissue that covers the external surfaces of organs and the lining of blood vessels, in addition to the internal surfaces of cavities found within numerous internal organs.