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

question 70

Short Answer

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 critical value to use in obtaining the confidence interval is______

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Definitions:

Budgeted Unit Sales

Forecasted number of units a business plans to sell over a specific period, used for planning and performance evaluation.

Ending Inventory

The total value of goods available for sale at the end of an accounting period, calculated as the sum of beginning inventory plus purchases minus cost of goods sold.

Minimum Cash Balance

The lowest amount of cash a company aims to maintain on hand to meet immediate needs and navigate through unforeseen expenditures.

Expected Cash Disbursements

Amounts of cash a company anticipates paying out over a specified period, often related to its operating expenses and investments.