Ruth Was Just Released from Prison

question 29

Multiple Choice

Ruth was just released from prison. She was released because the only time remaining on her sentence was equal to the good time that she earned. She was in prison for more than 10 years and is reluctant to return to her community. She does not have a job, has no permanent place to live, and is nervous that she will go back to her old habits of hanging with the "wrong crowd" and getting into trouble. Because of prison overcrowding, she must be released. Ruth is not the typical parolee because she is a female. What percentage of adult parolees are female?

• A)2 percent
• B)11  percent
• C)22 percent
• D)36 percent

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Definitions:

Mean Difference

The average of differences between pairs of observations in a dataset.

Standard Deviation

A statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance.

Paired T-test

A statistical test used to compare the means of two related groups to determine if there is a significant difference between them.

Significance Level

The probability of rejecting the null hypothesis in a statistical test when it is actually true; a measure of the risk of a Type I error.