TABLE 8-2 A Quality Control Engineer Is Interested in the Mean Length

question 149

Short Answer

TABLE 8-2
A quality control engineer is interested in the mean length of sheet insulation being cut automatically by machine. The desired mean 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 8-2, the confidence interval goes from ________ to ________.

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Definitions:

Smuggled

Goods or commodities that are imported or exported illegally, without paying tariffs or adhering to trade regulations.

Transit

The movement of people or goods from one location to another, typically refers to public transportation systems.

Equilibrium Price

The market price at which the quantity of an item supplied is equal to the quantity demanded.

Fine Imposed

A monetary penalty levied by an authority on individuals or entities as punishment for violations of legal rules or regulations.