A sales manager for an advertising agency believes there is a relationship between the number of contacts that a salesperson makes and the amount of sales dollars earned. A regression analysis shows the following results: = 33.4. = 2814.4. Rounding to one decimal place,the 95% confidence interval for 30 calls is ________.
A)55.8,51.5
B)51.4,55.9
C)46.7,60.6
D)31.1,76.2

Question

A sales manager for an advertising agency believes there is a relationship between the number of contacts that a salesperson makes and the amount of sales dollars earned. A regression analysis shows the following results:    = 33.4.  = 2814.4. Rounding to one decimal place,the 95% confidence interval for 30 calls is ________.
A)55.8,51.5 
B)51.4,55.9 
C)46.7,60.6 
D)31.1,76.2

Quizplus · Accepted Answer

The Answer of A sales manager for an advertising agency believes there is a relationship between the number of contacts that a salesperson makes and the amount of sales dollars earned. A regression analysis shows the following results:    = 33.4.  = 2814.4. Rounding to one decimal place,the 95% confidence interval for 30 calls is ________.
A)55.8,51.5 
B)51.4,55.9 
C)46.7,60.6 
D)31.1,76.2

A Sales Manager for an Advertising Agency Believes There Is