15. Historical demand for a product is January February March April May June Demand 12 11 15 12 16 15 a. Using a weighted moving average with weights of 0.60, 0.30, and 0.10, find the July forecast. b. Using a simple three-month moving average, find the July forecast. c. Using single exponential smoothing with a = 0.2 and a June forecast = 13, find the July forecast. Make whatever assumptions you wish. d. Using simple linear regression analysis, calculate the regression equation for the pre- ceding demand data. e. Using the regression equation in d, calculate the forecast for July. 1100

15. Historical demand for a product is a. Using a weighted moving average with weights of 0.60,0.30, and 0.10 , Find the July forecast. b. Using a simple three-month moving average, find the July forecast. c. Using single exponential smoothing with =0.2 and a June forecast =13, find the July forecast. Make whatever assumptions you wish. d. Using simple linear regression analysis, ealculate the regression equation for the preceding demand data. e. Using the regression equation in d, calculate the forecast for July