THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 151

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The manager of a used-car dealership is very interested in the resale price of used cars.The manager feels that the age of the car is important in determining the resale value.He collects data on the age and resale value of 15 cars and runs a regression analysis with the value of the car (in thousands of dollars) as the dependent variable and the age of the car (in years) as the independent variable.Unfortunately,the printout had lost some of the results,identified by"A" through"F".The partial results left are displayed below.
-What is the value of "B"?

• A)2.58
• B)6.67
• C)3.75
• D)3.95

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Definitions:

Scatter Plot

A type of graph used in statistics to visually display and assess the relationship between two numerical variables.

SPSS

Statistical Package for the Social Sciences, a software package used for interactive, or batched, statistical analysis.

Body Fat

A measure of the proportion of fat to the total body mass.

Pearson's Correlations

A measure of the linear correlation between two variables, ranging from -1 to 1, where 1 means a perfect positive correlation and -1 means a perfect negative correlation.