Supplier Order Date Arrival Date BP Lead Time Supplier Order Date Arrival Date EM Lead Time
Bryant Products 10/15/12 10/20/12 5 Elgin Metals 10/01/12 10/06/12 5
Bryant Products 10/20/12 10/27/12 7 Elgin Metals 10/03/12 10/08/12 5
Bryant Products 08/08/12 08/14/12 6 Elgin Metals 10/09/12 10/14/12 5
t-Test: Two-Sample Assuming Unequal Variances
BP Lead Time EM Lead Time
Mean 7 4.923076923
Variance 2 0.576923077
Observations 8 13
Hypothesized Mean Difference 0
df 10