a) Prepare a forecast through week 11 by using a five-week moving average. b) Prepare a forecast through week 11 by using a 3-perlod weighted moving average, giving the weight of 0.5 to the mont recent week. 03 io the second week and 0.2 io the thied week. c) Prepare a forecast using exponenelal smoothing method with a =0.2. Forecast for week 1 was 22 d) Prepare a forecast through weok 11 by using a regression model Y=26.33+0.3212X e) Which method is preferred for this data if mean absolute deviation (MAD) is used? 1) Make a recommendation for the number of full-size sedans for a week