A Researcher Is Interested in Whether High School Students Who

question 10

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) . He compares their average BMI to that of students in the general population and finds that z_obt = +1.92. This is a _____ test and the researcher should conclude _____.​

• A)one-tailed; that students who are athletes have significantly higher BMIs.
• B)two-tailed; that students who are athletes have significantly higher BMIs.
• C)one-tailed: that students who are athletes do not have significantly higher BMIs.
• D)two-tailed: that students who are athletes do not have significantly higher BMIs.

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Definitions:

Emergence

The process of coming into view or becoming exposed after being concealed or the process by which complex systems and patterns arise out of a multiplicity of relatively simple interactions.

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A style of leadership that combines traditional leadership qualities with the risk-taking and innovative approach of entrepreneurship.

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The process by which entrepreneurs identify and evaluate potential business opportunities or ideas.