TABLE 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.
-True or False: Referring to Table 10-12,the same decision would be made if this had been a two-tail test at a level of significance of 0.01.

Question

Quizplus · Accepted Answer

A two-tail test would consider deviations in both directions, while the original test is one-tailed, focusing only on whether the Kohler method has a greater proportion of defects. The decision could differ based on the test type.

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