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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.
-Referring to Table 10-12,construct a 99% confidence interval estimate of the difference in proportion between the Kohler and Russell flash drives that are defective.
Cube Root
The cube root of a number is a value that, when multiplied by itself three times, gives the original number.
Rationalize Denominator
The process of eliminating a radical from the denominator of a fraction by multiplying both the numerator and the denominator by an appropriate quantity.
Rationalize Denominator
The process of eliminating a root from the denominator of a fraction.
Radical Expression
A radical expression is an expression that includes a root symbol, indicating the root of a number or an expression needs to be taken.
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