Do Corporate Executives Who Exercise Regularly Score Lower Than Corporate

question 22

Essay

Do corporate executives who exercise regularly score lower than corporate executives in general on a scale of stress symptoms? For corporate executives in general, the average on this test is 80 with a standard deviation of 12. The distribution is normal. A researcher measured 20 exercising executives and found them to have a mean score of 72. Is this difference significant at the .05 level?
a. Use the five steps of hypothesis testing.
b. Figure the confidence limits for the 95% confidence interval.
c. Explain the logic of what you did to a person who is unfamiliar with hypothesis testing involving a sample of more than one individual.

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Definitions:

Preconscious

Part of the mind containing thoughts and memories that are not currently in conscious awareness but can be easily accessed.

Displaced

Removed or moved out of a usual or proper place, often referring to people who are forced to leave their homes.

Fixated

Exhibiting an obsessive focus on an idea, task, or object, often at the expense of the ability to engage with a broader range of topics or activities.

Superego

The part of personality that, according to Freud, represents internalized ideals and provides standards for judgment (the conscience) and for future aspirations.