Sailmaster makes high-performance sails for competitive windsurfers. Below is information about the inputs and outputs for one model, the Windy 2000. Units sold Sales price each Total labour hours Wage rate Total materials Total energy 1,217 $1,700 46,672 $12/hour $60,000 $4,000 Calculate the productivity in sales revenue/labour expense and the multifactor productivity. Problem 2 The following table provides the number of cars sold within the city of Metropolis: Month May June July August September October Cars Sold 360 389 410 381 368 374 a) Forecast the demand for the months of August, September, October, and November: i. using a 3-month moving average ii. using a nave forecasting method iii. using exponential smoothing with a forecast for May of 300 and a=0.2 b) Following the calculation of your forecasts, it was determined that November sales are 350. Find the MAD for each forecast method (August to November) and indicate which method provides a more accurate forecast