The Editors of a National Automotive Magazine Recently Studied 30

question 84

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 is the result of using a forward selection stepwise regression approach. Which of the following might explain why no other independent variables entered the model?

• A)No other variable had a correlation with the dependent variable that was close to 1.0.
• B)None of the remaining variables had a positive correlation with y.
• C)The remaining variables must be nearly perfectly correlated with the two variables already in the model.
• D)Given the two variables already in the model,none of the others could add significantly to the percentage of variation in the y variable that would be explained by the model.

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Definitions:

Equality Before God

The theological or philosophical concept that all human beings are equal in the eyes of a divine power or God, regardless of social, economic, or ethnic differences.

Blacks

A term referring to people of African descent, often used in the context of discussing racial identity and experiences, particularly in the United States.

Church Attendance

The practice of going to church services, reflecting an individual's commitment to their faith and religious community.

1850s

A decade during the 19th century (1850-1859) marked by significant events including the height of the Industrial Revolution, the expansion of the American territories, and growing tensions leading to the Civil War.