A sales manager for an advertising agency believes there is a relationship between the number of contacts and the amount of the sales.To verify this belief,the following data was collected: What is the value of the coefficient of determination?
A)9.3104
B)0.9754
C)0.6319
D)0.9513

Question

A sales manager for an advertising agency believes there is a relationship between the number of contacts and the amount of the sales.To verify this belief,the following data was collected:  What is the value of the coefficient of determination?
A)9.3104 
B)0.9754 
C)0.6319 
D)0.9513

Quizplus · Accepted Answer

The coefficient of determination, represented by R^2, is a measure of the proportion of variability in the dependent variable (amount of sales) that can be explained by the independent variable (number of contacts). It ranges from 0 to 1, with higher values indicating a stronger relationship. Based on the data provided in the table and using a regression analysis, the value of R^2 is 0.9513. Therefore, the best choice is D.

A Sales Manager for an Advertising Agency Believes There Is