Date	A	B	C	D	Stock Exchange
09/03/2010	128.55	18.44	21.21	15.27	10,404.23
09/07/2010	127.01	18.13	20.43	15.33	10,389.37
09/08/2010	127.31	17.89	20.59	15.67	10,460.34
09/09/2010	126.43	17.93	20.65	15.94	10,420.66
09/10/2010	127.09	18.12	20.67	16.05	10,445.95
09/13/2010	129.78	18.69	21.21	16.36	10,574.11
09/14/2010	128.65	18.74	21.38	16.28	10,585.21
09/15/2010	128.25	18.58	21.57	16.34	10,608.13
09/16/2010	130.22	18.81	21.72	16.13	10,498.66
09/17/2010	129.98	18.66	21.84	16.37	10,598.79
09/20/2010	131.73	18.93	21.73	16.68	10,753.38
09/21/2010	132.78	19.06	21.75	16.56	10,825.49

b. Compute the MAD, MSE, and MAPE for each of the models. Compute the MAD (mean absolute deviation) for each of the models. (Type integers or decimals rounded to two decimal places as needed.) Stock A Stock B Stock C Stock D Stock Exchange Compute the MSE (mean square error) for each of the models. (Type integers or decimals rounded to two decimal places as needed.) Stock A Stock B Stock C Stock D Stock Exchange Compute the MAPE (mean square error) for each of the models. (Type integers or decimals rounded to two decimal places as needed.) Stock A 1% Stock B % Stock C % Stock D % Stock Exchange % c. Does a smoothing constant of 0.1 or 0.5 yield better results? Select the correct answer below and, if necessary, fill in the answer box to complete the choice. O A. A smoothing constant of yields better results because the values of MAD, MSE and MAPE are all higher. (Type an integer or a decimal.) OB. A smoothing constant of yields better results because the values of MAD, MSE and MAPE are all lower. (Type an integer or a decimal.) OC. Neither 0.1 nor 0.5 yield better results because the values of MAD, MSE and MAPE for a = 0.3 are all higher. OD. Neither 0.1 nor 0.5 yield better results because the values of MAD, MSE and MAPE for a=0.3 are all lower. b. Compute the MAD, MSE, and MAPE for each of the models. Compute the MAD (mean absolute deviation) for each of the models. (Type integers or decimals rounded to two decimal places as needed.) Stock A Stock B Stock C Stock D Stock Exchange Compute the MSE (mean square error) for each of the models. (Type integers or decimals rounded to two decimal places as needed.) Stock A Stock B Stock C Stock D Stock Exchange Compute the MAPE (mean square error) for each of the models. (Type integers or decimals rounded to two decimal places as needed.) Stock A 1% Stock B % Stock C % Stock D % Stock Exchange % c. Does a smoothing constant of 0.1 or 0.5 yield better results? Select the correct answer below and, if necessary, fill in the answer box to complete the choice. O A. A smoothing constant of yields better results because the values of MAD, MSE and MAPE are all higher. (Type an integer or a decimal.) OB. A smoothing constant of yields better results because the values of MAD, MSE and MAPE are all lower. (Type an integer or a decimal.) OC. Neither 0.1 nor 0.5 yield better results because the values of MAD, MSE and MAPE for a = 0.3 are all higher. OD. Neither 0.1 nor 0.5 yield better results because the values of MAD, MSE and MAPE for a=0.3 are all lower