A Researcher in Interested in Whether High School Students Who

question 4

Multiple Choice

A researcher in 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:

Palms Sweat

The phenomenon of increased perspiration on the palms typically triggered by anxiety, nervousness, or high temperatures.

Emotional Arousal

The condition of being emotionally stimulated or excited, which can affect both cognitive processes and physical states.

Armed Robber

A person who commits robbery using a weapon to threaten or harm others in the process of stealing.

Blood Sugar Levels

The concentration of glucose present in the blood, which is a crucial energy source for the body's cells and a key indicator in diagnosing and managing diabetes.