Obtain estimates of quarter relatives for these data using the centered moving average method. (Round all calculations to three decimal points and standardize the final seasonal relatives so their total is four.) Quarter Demand Year 1 2 3 4 1 2 1 2 3 4 1 2 3 4 17 21 35 52 30 37 58 75 Quarter 1 2 3 4 1 2 3 4 1 2 3 4 1 Year MA4 31.25 34.50 38.50 44.25 50.00 53.75 58.50 66.00 68.50 71.25 MA 1 45 32.875 36.500 41.375 47.125 51.875 56.125 62.250 67.250 69.875 2 56 3 3 4 88 85 Demand/MA2 1.065 1.425 0.725 0.785 1.118 1.336 0.723 0.833 1.259 4 1 56 Average for the quarter: Standardized relatives: 1 2 Quarter 3