A Researcher Is Interested in Whether High School Students Who

question 58

Multiple Choice

A researcher is interested in whether high school students who play sports have a higher or lower body mass index (BMI) than students in the general population. The researcher is unsure whether playing sports will decrease body mass (due to more calories burned) or increase body mass (due to more muscle mass) . The researcher selects a sample of 60 athletes and finds that their average BMI is 22. The average (µ) in the general population of students is 22.5 with a standard deviation (s) of 3. What is z_obt for this sample?​

• A)0.98
• B)1.29
• C)1.96
• D)2.25

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Definitions:

Lobbyists

Individuals or groups who attempt to influence lawmakers in favor of or against specific legislation or policies.

Interest Groups

Interest groups are organized groups of people who come together to pursue common interests and influence public policy.

Economic Interest Groups

Organizations that represent the economic interests of their members in political processes.

Business Groups

Organizations formed by companies in similar industries or fields to advocate for their common interests.