The Italian General's Pizza Parlour is a small restaurant catering to patrons with a taste for European pizza. One of its specialties is Italian Prize pizza. The manager must forecast weekly demand for these special pizzas so that he can order pizza shells weekly. Recently, the demand has been as follows:
Week Number of Pizzas Sold
June 2-8 48
June 9-15 62
June 16-22 49
June 23-29 55
June 30-July 6 51
July 7-13 59
a) Forecast the demand for pizzas for all weeks from June 23 to July 20. Use a three-week weighted moving average with weights of 0.2, 0.3, and 0.5. Note: Show all calculations. Use the largest weight with the most recent data.
Week Number of Pizzas Sold Forecast
June 2-8 48
June 9-15 62
June 16-22 49
June 23-29 55
June 30-July 6 51
July 7-13 59
July 14-20