The 90% Confidence Interval Estimate for a Population Standard Deviation

question 67

Multiple Choice

The 90% confidence interval estimate for a population standard deviation when a sample variance of 50 is obtained from a sample of 15 items is

• A)4.18 to 15.07
• B)5.18 to 11.15
• C)5.44 to 10.32
• D)29.55 to 106.53

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Definitions:

Minimization

The process or strategy of reducing or keeping to a minimum the size, amount, or degree of something, especially costs or liabilities.

Product Mix

The total range of products or services offered by a company to its customers.

Increasing-Cost Industry

An industry in which the costs of production increase as the industry grows and decreases as it contracts.

Resource Prices

The costs associated with acquiring inputs used in the production process, such as labor, materials, and capital.