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:

Malpractice

A failure of a professional to meet the standard of care or conduct in their field, often leading to harm or loss.

Negligence

A lack of acting with the diligence an average reasonable person would show under the same conditions.

Professional

A person engaged in a specified activity as one's main occupation rather than as an amateur.

Negligent

Failing to exercise the care that a reasonably prudent person would exhibit under similar circumstances.