Forty-Six Members of a Bowling League Sign Up for a Program

question 70

Multiple Choice

Forty-six members of a bowling league sign up for a program that claims to improve bowling scores. The participants bowl a set of five games before the program begins and a set of five games again at the end to
Measure their improvement. The mean number of points improved (over the set of five games) was $\bar { x } = 14$ . Assume the standard deviation is $\sigma = 59$ and let $\mu$ be the population mean number of points improved for the set of five games. To determine whether the program is effective, a test is made of the hypotheses $H _ { 0 } : \mu = 0$ versus $H _ { 1 } : \mu > 0$ . Compute the value of the test statistic.

• A) 1.61
• B) 12.36
• C) 0.24
• D) 0.0537

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Definitions:

Psychodynamic

A psychological perspective focusing on the interplay between unconscious and conscious mental processes shaping personality and behavior.

Anomic Suicide

Suicide committed by individuals whose social environment fails to provide stability, thus leaving them without a sense of belonging.

Egoistic Suicide

A concept introduced by Durkheim referring to suicides resulting from a lack of integration of the individual into society, often stemming from feelings of not belonging or being excessively individualistic.

Social Environment

The immediate physical and social setting in which people live or in which something happens or develops, encompassing cultural, economic, and institutional activities.