The number of days required for two suppliers to deliver orders is as follows. Supplier A: 11 10 9 10 11 11 10 11 10 10 Supplier B: 8 10 13 7 10 11 10 7 15 12 Where, the average number of days required for supplier A to deliver orders = 10.3 days and Standard Deviation = 0.67 day 1) Which supplier provides more consistent and homogenous delivery times A or B? Justify your answer. 2) And do you think the delivery time for each supplier is symmetric. Support your answer with a proper test for skewness