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

question 49

Multiple Choice

A Mann-Whitney U test was performed to determine if there were differences in the average compute time for Dallas residents versus Atlanta residents.The travel time for 22 commuters in Dallas was compared to the travel time for 28 commuters in Atlanta.The U statistic was calculated to be 58.0 based on the sample sizes of 22 and 28.What is the z value for this test?

• A)51.17
• B)308
• C)0.117
• D)-4.89
• E)-2.44

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Definitions:

Systematic Risk

The risk inherent to the entire market or market segment that cannot be mitigated through diversification.

Quarterly Sales

The total value of all sales achieved by a company during a specific three-month period.

Chapters

Sections or divisions in documents or publications, such as books, typically indicating a change in subject, theme, or story progression.

Unsystematic Risk

The risk of price changes in a company's stock due to factors specific to the company, as opposed to market-wide factors.