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

question 98

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) -4.88
• E) -2.44

---

Definitions:

Society's Expectations

The anticipated norms, behaviors, and standards that a community holds for its members.

Lower-SES

Refers to individuals or groups categorized as having a lower socioeconomic status, which may include aspects of poverty, education, and employment opportunities.

Single-Parent Families

Households where a child or children live with only one guardian, often due to divorce, separation, death, or single parenthood by choice.

United States

A country located in North America, consisting of 50 states, a federal district, and various territories.