Identify and Explain a Source of Bias in the Study

question 49

Multiple Choice

Identify and explain a source of bias in the study described. Then suggest how the bias might have been avoided.
-When a well-known sports writer wrote "Jocks Make Great Dads," he based conclusions about the general Population of all men on 3,200 replies that he received after mailing 100,000 questionnaires to various country Clubs.

• A)The sample is random but the proportion of replies is small and all from men who play sports. A better sampling procedure, such as interviews with at least 10,000 randomly chosen men, would have helped.
• B)The sample is self-selected and the proportion of replies is small, so the responses are likely to have come from those with strong feeling about the issues. A better sampling procedure, such as interviews with
• 3,200 randomly chosen men, would have helped.

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Definitions:

Combinations of Capital

Various ways in which a firm can organize its financial resources and assets to support its production process and operations.

Total Cost

The sum of fixed and variable costs incurred in the production of goods or services.

Isocost Line

A graphical representation in economics that shows all possible combinations of inputs that cost the same total amount.

Slope

A measure of the steepness or incline of a line, calculated as the ratio of the vertical change to the horizontal change between two points on the line.