If You Wish to Estimate with 95% Confidence the Average

question 210

Multiple Choice

If you wish to estimate with 95% confidence the average number of miles that students living off-campus commute to classes every day, a random sample of 20 students produced a mean equal to 5.2 miles and a standard deviation of 3.05 miles. Then, the appropriate critical value is:

• A) 1.96
• B) 2.086
• C) 2.093
• D) 1.7291
• E) 2.58

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Definitions:

Long Run

The long run is a period in economic theory during which all factors of production and costs are variable, allowing firms to adjust all inputs to attain desired output levels.

Per-unit Costs

The cost incurred for producing a single unit of product, often calculated to analyze efficiency or profitability.

Increasing Cost Industry

An industry where production costs rise as output increases due to factors such as limited resources or higher wages.

Resource Prices

The cost associated with acquiring resources or inputs, such as labor, raw materials, and capital, used in the production of goods and services.