In a Survey for Her Marketing Class,Allicia Interviewed 80 Randomly

question 46

Multiple Choice

In a survey for her marketing class,Allicia interviewed 80 randomly selected men and asked them their opinions of women with tans.Her initial results showed that the men overwhelmingly believed tans were a health risk.When she conducted the same survey again using the same methodology,she discovered that 50 percent of the surveyed population in the second group found women with tans sexy.This is most likely an example of a _____ error.

• A) representational
• B) random
• C) nonprobability
• D) frame
• E) reliability

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Definitions:

Parameter Estimates

Statistical values calculated from data that are used to represent certain characteristics of a population.

Level of Significance

A statistical measure that defines how strong the evidence must be to reject the null hypothesis in a hypothesis test.

Regression Model

A regression model is a statistical tool used to estimate the relationships among variables, typically between a dependent variable and one or more independent variables.

Multicollinearity

Multicollinearity occurs when independent variables in a regression model are highly correlated, potentially distorting the results and making coefficients unreliable.