The Editors of a National Automotive Magazine Recently Studied 30

question 87

Multiple Choice

The editors of a national automotive magazine recently studied 30 different automobiles sold in the United States with the intent of seeing whether they could develop a multiple regression model to explain the variation in highway miles per gallon.A number of different independent variables were collected.The following regression output (with some values missing) was recently presented to the editors by the magazine's analysts: Based on this output and your understanding of multiple regression analysis,how many degrees of freedom are associated with the Residual in the ANOVA table?

• A)19
• B)22
• C)7
• D)29

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Definitions:

Degrees of freedom

In statistics, it relates to the number of values in the final calculation of a statistic that are free to vary.

Confidence interval estimate

A range or interval of values, calculated from the sample data, within which the true population parameter is expected to lie, with a certain level of confidence.

Systolic blood pressure

The pressure in the arteries when the heart beats and fills them with blood.

Population mean

The average of a set of characteristics or values for the entire population.