Reference no: EM1321058

Question: The marketing manager of a large supermarket chain would like to use shelf space to predict the sales of pet food.  For a random sample of twelve similar stores, she gathered the following information regarding the shelf space, in feet, devoted to pet food & the weekly sales in hundreds of dollars.

Store	1	2	3	4	5	6
Shelf Space (X)	5	5	5	10	10	10
Weekly Sales (Y)	1.6	2.2	1.4	1.9	2.4	2.6

 

Store	7	8	9	10	11	12
Shelf Space (X)	15	15	15	20	20	20
Weekly Sales (Y)	2.3	2.7	2.8	2.6	2.9	3.1

Calculate the value of the sample correlation coefficient between weekly sales & shelf space.

[A] 0.652
[B] 0.308
[C] 0.684
[D] 0.827