Step 4 The following table summarizes the given data and the forecast values. There will not be a forecast error for the first month. Complete the columns for the forecast error and squared forecast error. Forecast Error Month Value Forecast Value Actual - Forecast Squared Forecast Error (Actual Forecast)2 1 18 2 26 18 26 -18=8 (8)2=64 3 22 22 22 4 27 22 5 5 23 23.25 -0.25 6 22 222 7 23.2 27 27 23 4 Total 0 1.44 The MSE will be the average of the squared forecast error column. Find the average of this column, rounding the result to two decimal places. MSE= Type here to search 4+ R L W 72°F NEW 9:29 PM 5/9/2024