TABLE 8-3 a Quality Control Engineer Is Interested in the Mean

question 3

True/False

TABLE 8-3
A quality control engineer is interested in the mean length of sheet insulation being cut automatically by machine. The desired length of the insulation is 12 feet. It is known that the standard deviation in the cutting length is 0.15 feet. A sample of 70 cut sheets yields a mean length of 12.14 feet. This sample will be used to obtain a 99% confidence interval for the mean length cut by machine.
-Referring to Table 8-3, the confidence interval indicates that the machine is not working properly.

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Definitions:

Break-Even Analysis

An evaluation to determine the point at which the revenue from a product or service equals the costs, indicating that no profit or loss is made.

BCG Matrix

A strategic planning tool that uses graphical representations of a company’s products and services to help management decide where to invest, develop, or discontinue.

Cash Cow

A cash cow is a business term for a product or business segment that generates consistently high profit margins and significant cash flow, with minimal investment.

Break-Even Analysis

An evaluation to determine the point at which revenue received equals the costs associated with receiving the revenue, indicating no net loss or gain.