The accompanying dataset provides the closing prices for four stocks and the stock exchange over 12 days. Complete parts a through c.

Date A B C D Stock Exchange

09/03/2010 128.52 18.42 21.22 15.31 10,544.88

09/07/2010 126.87 18.02 20.64 15.51 10,390.73

09/08/2010 124.98 18.08 20.79 15.56 10,345.54

09/09/2010 126.88 18.16 20.53 16.01 10,318.31

09/10/2010 127.57 18.04 20.43 16.01 10,492.27

09/13/2010 129.04 18.47 21.26 16.34 10,576.83

09/14/2010 128.04 18.59 21.63 16.09 10,597.57

09/15/2010 128.97 18.81 21.62 16.21 10,552.66

09/16/2010 128.88 19.15 21.96 16.27 10,624.03

09/17/2010 129.73 18.94 21.65 16.38 10,570.23

09/20/2010 132.96 18.83 21.73 16.54 10,775.04

09/21/2010 132.94 19.28 21.46 16.59 10,846.23

b. Compute theMAD, MSE, and MAPE for each of the models.

Compute the MAD(mean absolutedeviation) for each of the models.

(Type integers or decimals rounded to two decimal places asneeded.)

Stock A

Stock B

Stock C

Stock D

Stock Exchange