A Mann-Whitney U Test Was Performed to Determine If There

question 12

Multiple Choice

A Mann-Whitney U test was performed to determine if there were differences in the cost of tuition at a Texas state university versus an Oklahoma state university.The total cost, including room, board, and books for 24 freshmen attending a Texas university were computed and compared to the total cost for 20 Oklahoma state university students.The U statistic was calculated to be 38.78 based on the sample sizes of 24 and 20.What is the z value for this test?

• A)0.133
• B)-4.74
• C)240
• D)42.43
• E)8.75

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Definitions:

Direct Materials

Materials that can be directly linked to the production of a product and are essential components of the final product.

Fixed Costs

Charges that do not fluctuate with production or sales volume, such as property leases, payroll, and insurance policies.

Income Statement

A financial statement that shows a company's revenues, expenses, and profits over a specific period.

Unit Product Cost

The total cost to produce one unit of a product, including direct materials, direct labor, and manufacturing overhead.