In the demand forecast, which of the following cannot be predicted? Select one: a. seasonal fluctuations b. cycles c. random variations d. large increases in demand

The following table shows the actual demand observed over the last 11 years: Year Demand 1 7 Year Forecast 2 8 2 3 4 3 4 10 4 Using exponential smoothing with a = 0.30 and a forecast for year 1 of 6.0, provide the forecast from periods 2 through 12 (round your responses to one decimal place). 3 2 4 5 6 T 8 9 Year 1 Forecast 6.0 Provide the forecast from periods 2 through 12 using the naive approach (enter your responses as whole numbers) 5 12 5 6 7 6 7 8 11 14 7 8 9 10 9 10 10 10 13 11 11 11 8 12 12

Among these trend patterns, within the projection methods, choose the one that is most common when analyzing demand, and why?-Secular trend -Seasonal variation -Cyclical fluctuations -Irregular movements

Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following table: Year -1 2 Registrations (000) 5.0 5.0 Year Forecast 4 4.3 This exercise contains only parts a and b. a) Using a 3-year moving average, the forecasted registrations (in thousands) for years 4 through 12 are (round your responses to one decimal place): 5 4.6 4 3 3.0 5 6 6.6 7 8 4 5 6 9 10 6.0 11.0 9.0 7.0 9.0 13.0 16.0 6 7 8.7 8 9 7 9 8.3 b) Using a 3-year weighted moving average in which the registrations in the most recent year are given a weight of 2, and registrations in the other 2 years are each given a weight of 1, the forecasted registrations (in thousands) for years 4 through 12 are (round your responses to one decimal place): Year Forecast 8 10 9.6 9 11 12.6 10 12 15.3 11 11 17.0 12