Dr Guidry Conducts a Study Examining the Relationship Between the Number

question 30

Multiple Choice

Dr. Guidry conducts a study examining the relationship between the number of friends one has and the experience of daily stress and life satisfaction. She randomly samples 1,500 elderly men and women in Nashville, Tennessee (the state capital) , located in the southern United States. Below are her findings.
•Life satisfaction and experience of daily stress: r =.57 (p = .01)
•Number of friends one has and experience of daily stress: r = .09, not sig.
•Number of friends one has and life satisfaction: r = .36 (p = .04)
Dr) Guidry finds that the relationship between the number of friends one has and life satisfaction is stronger for men than for women. In this study, sex (male or female) is considered a(n) :

• A)outlier.
• B)cause.
• C)moderator.
• D)spurious variable.

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Definitions:

Market Shares

The proportion of total market sales within an industry that is held by a specific company.

Herfindahl Index

A measure of market concentration used to determine the level of competition within an industry by summing the squares of the market shares for each firm.

Import Competition

The competitive pressure on domestic companies from foreign products and services entering the domestic market.