The file named Coupondata.xlsx contains information on the sales of peanut butter for weeks when a coupon was issued (or not) and advertising was done (or not) in the Sunday paper. Describe how the coupon and advertising influence peanut butter sales.

	Rep 1	Rep 2	Rep 3	Rep 4
1	2	3	4	3
	4	5	5	12
3	4	5	4	6
	6	7	4	6
5	8	10	5	5
	10	13	5	5