A Sales Manager for an Advertising Agency Believes There Is

Multiple Choice

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 believe, the following data was collected:

The 95% prediction interval for a particular person making 30 calls is:

A) 55.8, 51.5
B) 51.4, 55.9
C) 46.7, 60.6
D) 31.1, 76.2 Multiple Choice Difficulty: Hard Learning