Managerial Question - (You will need EXCEL to do these calculations)

Consider the dataset in "retailer chart." The dataset includes a random sample of suppliers' delivery times. Construct an appropriate test to see if Supplier A is faster than Supplier B at significance level 0.1.

Retailer Chart:

Supplier A delivery times (in days)	Supplier B delivery times (in days)
31	37
81	50
30	34
37	47
24	46
20	56
82	42
25	34
17	52
23	54
91	58
27	23
26	67
21	51
22	48
24	47
27	45
21	48
88	49
29	61
27	43
32	65
31	74
90	68
24	52
18	56
33	55
26	53
83	45
84	44
25	57
91	61
91	56
88	45
26	53
83	51
25	60
90	35
23	68
74	55
22	49
20	51