The following data show the average Home Price Index over a six-quarter period. Complete parts a through e below. Quarter Q1 2016 Q2 2016 Q3 2016 04 2016 Q1 2017 Q2 2017 Index 185.1 190.1 195.8 195.8 198.3 202.2 a. Forecast the price index for Q3 2017 using a two-period simple moving average. The forecasted price index is 200.25 . (Round to two decimal places as needed.) b. Calculate the MAD for the forecast in part a. MAD = 4.68 (Round to two decimal places as needed.) c. Forecast the price index for Q3 2017 using a three-period simple moving average. The forecasted price index is 198.77 . (Round to two decimal places as needed.) d. Calculate the MAD for the forecast in part c. MAD = (Round to two decimal places as needed.)