Which of the Following Hypotheses Is a One-Tailed Test

question 51

Multiple Choice

Which of the following hypotheses is a one-tailed test?

• A) Hybrid cars get better gas mileage than traditional cars
• B) There is a difference in the gas mileage of cars and trucks
• C) There is no difference in gas mileage among two-door and four-door vehicles
• D) There is a relationship between the number of miles to one's job and the gas mileage associated with his or her chosen car
• E) All of the above are one-tailed tests

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Definitions:

Mark-Up Percentage

The percent difference between the cost of a good or service and its selling price, used to calculate the selling price from the cost.

Contribution Margins

The amount remaining from sales revenue after variable expenses are deducted, indicating how much contributes to covering fixed costs and generating profit.

Labour Hours

The total number of hours worked by employees, used for measuring productivity or calculating costs.

Product Mix

The variety of products that a company offers for sale, which can affect its market position and profitability.