A Car Dealer Who Sells Only Late-Model Luxury Cars Recently

question 105

Multiple Choice

A car dealer who sells only late-model luxury cars recently hired a new salesperson and believes that this salesperson is selling at lower markups. He knows that the long-run average markup in his lot is $5,600. He takes a random sample of 16 of the new salesperson's sales and finds an average markup of $5,000 and a standard deviation of $800. Assume the markups are normally distributed. What is the value of an appropriate test statistic for the car dealer to use to test his claim?

• A) t₁₅ = -3.00
• B) z = -3.00
• C) t₁₅ = -0.75
• D) z = -0.75

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Definitions:

Labor Rate Variance

The difference between the actual cost of labor and the expected (or budgeted) cost, based on predetermined rates and actual hours worked.

Variable Overhead Rate Variance

The gap between what was actually spent on variable overhead and what was predicted to be spent, considering the actual activity level.

Rate Variances

Differences between the standard or expected rates of costs and the actual rates incurred, often analyzed in cost accounting.

Variable Overhead

Refers to the costs that fluctuate with changes in production volume, such as utilities or materials that are consumed directly as a result of manufacturing activities.