A sales manager for an advertising agency believes that there is a relationship between the number of contacts that a salesperson makes and the amount of sales dollars earned. A regression ANOVA shows the following results: What is the value of the coefficient of determination?
A)-0.9513
B)0.9754
C)0.6319
D)0.9513

Question

A sales manager for an advertising agency believes that there is a relationship between the number of contacts that a salesperson makes and the amount of sales dollars earned. A regression ANOVA shows the following results:  What is the value of the coefficient of determination?
A)-0.9513 
B)0.9754 
C)0.6319 
D)0.9513

Quizplus · Accepted Answer

The coefficient of determination measures the proportion of variation in the dependent variable (amount of sales dollars earned) that can be explained by the independent variable (number of contacts made by the salesperson). From the ANOVA results, we can see that the value of R-squared (which is the same as the coefficient of determination) is 0.9753, which means that 97.53% of the variation in sales dollars earned can be explained by the number of contacts made. Therefore, the correct answer is D, 0.9513.

A Sales Manager for an Advertising Agency Believes That There