If We Were Comparing the Difference Between the Mean Number

question 70

Multiple Choice

If we were comparing the difference between the mean number of sports drinks consumed by male vs. female athletes during a typical week and we calculated a z value of 4.33, we would conclude that the probability of support of the

• A) null hypothesis of no difference is less than < 0.01 because 4.33 is greater than 2.58.
• B) alternative hypothesis of no difference is less than < 0.01 because 4.33 is greater than 2.58.
• C) null hypothesis of no difference is less than < 0.01 because 4.33 is less than 2.58.
• D) alternative hypothesis of no difference is less than < 0.01 because 4.33 is less than 2.58.
• E) None of the above.

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Definitions:

Re-arrest Rates

The frequency at which individuals who have been previously arrested are arrested again within a specific time frame.

Null Hypothesis

A statement in statistics that suggests there is no significant effect or difference between specified populations, any observed difference being due to sampling or experimental error.

Association

A statistical relationship between two variables, indicating how changes in one variable are related to changes in another.

Null Hypothesis

The hypothesis that there is no significant difference or effect, serving as the default assumption to be tested in statistical analysis.