Sam has a cleaning service. To better allocate his resources, he would like to forecast his weekly orders based on the order number he received in the past 13 weeks as shown in the following table.

Week Demand

Week 1 11

Week 2 14

Week 3 16

Week 4 10

Week 5 15

Week 6 17

Week 7 11

Week 8 14

Week 9 17

Week 10 12

Week 11 14

Week 12 16

Week 13 15

Using a three week moving average, Sam's forecast for his Week 14 order number is ____

Using a three week weighted moving average with weights 3, 2, and 1 given to the most recent, second most recent, and third most recent week, respectively, Sam's forecast for his Week 14 order number is______

If the MAD for moving average is 4.17 and the MAD for weighted moving average is 2.38, then which forecast is more accurate?

A.Moving average
B.Weighted moving average
C.The same
D.Not enough information to evaluate.