please answer all 3

1) [1 point] (This Question is related to Chapter 4 section Time-Series Forecasting) Weekly sales of ten-grain bread at the local organic food market are provided in the table below. Based on these data, forecast week 9 using a four-week moving average. Week Sales 1 415 389 420 382 410 432 7 425 8 421 2) [1 point] (This Question is related to Chapter 4 section Time-Series Forecasting) What is the forecast for May based on a weighted moving average applied to the following past demand data and using the weights: 4, 3, 3 (largest weight is for most recent data)? Nov, Dec. Jan. Feb. Mar. April 37 36 40 42 47 43 3) [1 point] (This Question is related to Chapter 4 section Time-Series Forecasting) The last four weekly values of sales were 80, 100, 105, and 90 units, respectively. The last four forecasts (for the same four weeks) were 60, 80, 95, and 75 units, respectively. Calculate the MAD, MSE, and MAPE for these four weeks. Sales Forecast Error Error squared Pct. error 80 60 20 400 25 100 80 20 400 20 105 95 10 100 095 90 75 15 225 167 2 3 4 5 6