q10-  What is the best description of Granger-causality? Select one: a.   the ability of lags of one variable to contribute to the forecast of another variable   b. the ability of a variable to predict its own future c. the ability of the one variable to explain it own past d.

Define the MONITORING FORECAST ERROR?

ABC Inc. sells patio sets. Monthly sales for a seven-month period were as follows:    Month Sales (000) Unites Feb 19 Mar 18 Apr 15 May 20 Jun 18 Jul 22 Aug 20 Forecast September sales volume using a five-month moving average approach.

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Given the following historical data, what is the simple three-period moving average forecast for period 6? Period 1 2 3 4 5 67.67 68.2 67.3 68.4 Value 73 66 64 73 66

45 A forecasting method has produced the following over the past five months. What is the mean absolute deviation?   Actual Forecast Error |Error| 10 11 -1 1 8 10 -2 2 10 8  2 2 6 6  0 0 9 8  1 1   Select one: a. -0.2 b. 1.2 c. 8.6 d. -1.0 e. 0.0

1. The following table gives the number of pints of type A blood used at Damascus Hospital in the past 6​ weeks: Part 2                                                          Week Of Pints Used August 31 350 September 7 372 September 14 412 September 21 381 September 28 366 October 5 378 Part 3 ​a) The forecasted demand for the week of October 12 using a​ 3-week moving average LOADING... ​= _____________pints ​(round your response to two decimal​ places).

The following table gives the number of pints of type A blood used at Damascus Hospital in the past 6 weeks: S Week Of August 31 September 7 September 14 September 21 September 28 October 5 a) The forecasted demand for the week of October 12 using a 3-week moving average = pints (round your response to two decimal places) b) Using a 3-week weighted moving average, with weights of 0.15, 0.35, and 0.50, using 0.50 for the most recent week, the forecasted demand for the week of October 12 = order the largest weight applies to most recent period and smallest weight applies to oldest period.) c) If the forecasted demand for the week of August 31 is 350 and a = 0.30, using exponential smoothing, develop the forecast for each of the weeks with the known demand and the forecast for the week of October 12 (round your responses to two decimal places) Week Of Pints Used Forecast for this Date 350 350.00 356.00 August 31 September 7 September 14 September 21 September 28 October 5 October 12 Pints…

K 2. Setting an advertising budget is a forecasting exercise. What are the fundamental principles that should be adhered to when undertaking forecasting?   Be conservative and use the best evidence-based technique available Be innovative and use multiple methods and choose the optimal one Be conservative and use multiple evidence-based techniques, taking the average result Be innovative and use multiple evidence-based techniques, taking the average result