Forecasting: Practice Computational Problems Problem 1: If the forecast errors for four consecutive periods are 4, -6, 8, and 6, what are: a) the mean absolute deviation? b) the mean squared error? Problem 2: If the forecast errors for five consecutive periods are 9, -6, -8, 3, and 8, what are: a) the mean absolute deviation? b) the mean squared error? Problem 3: Using the data below: Period @ Sales 543 482 501 | | | w e L L a) Find the forecast for period 6 using the naive method. b) Find the forecast for period 7 based on a two-period moving average. Find the forecast for period 7 based on a four-period moving average. d) Find the forecast for period 7 based on a four-period weighted moving average using the following weights: ] Find the forecast for period 7 based on exponential smoothing with alpha = 0.7 and assuming that the forecast for period 4 was 500. Problem 4: Using the data below: Period @ Sales 1 201 213 210 222 234 246 (| P W D a) Find the forecast for period 7 based on a three-period moving average. b) Find the forecast for period 7 based on a five-period moving average. c) Find the forecast for peried 2 using the naive method. d) Find the forecast for period 7 based on a four-period weighted moving average using the following weights: 1 period prior 2 periods prior 3 periods prior 4 periods prior &) Find the forecast for period 7 based on exponential smoothing with alpha = 0.6 and assuming that the forecast for period 5 was 222. Problem 5: Given the following data, find the seasonal relatives for all four quarters. Period Q12024 a2 2024 Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 Q4 2025 Problem 6: Given the following data, find the seasonal relatives for all four quarters. Problem 7: A Disney amusement park estimates its daily attendance with the function below, using temperature (in degrees Fahrenheit) and precipitation (in inches): Attendance = 100(Temperature) - 2200(Precipitation) + 900. If the weather forecast is BOF and 0.25 inches of precipitation, what is estimated attendance? Problem 8: A Disney amusement park estimates its daily attendance by the following function using temperature (in degrees Fahrenheit) and precipitation (in inches): Attendance = 150([ Temperature) - 1800(Precipitation) - 2000. If the weather forecast is 100F and 0.4 inches of precipitation, what is estimated attendance