Question 20 The mean squared error (MSE): O emphasizes larger errors determines the average negative error determines the average percentage of the errors O is not useful 1.5 P Question 21 A forecasting method has produced the information in the chart below over the past five months. What is the mean absolute deviation (MAD)? Actual Forecast Error 00 O 4 6 5 $2 3 7 0.8 2.0 3.2 5.2 3 4 6 5 3 1 2 -1 -2 1.5 point 4 Question 22 1.5 points A forecasting method has produced the information in the chart below over the past five months. What is the mean absolute deviation (MAD)? Actual Forecast Error 10 8 10 6 9 1.2 1.5 0 3.0 25 11 10 8 6 8 -2 2 0 Question 22 of 61 1 Save As Question 23 Which is true regarding forecasting errors: smaller errors, regardless of whether they are positive or negative, is the best situation negative errors, where actual was less than the forecast, are the best situation O positive errors, where the actual was more than the forecast, are the best situation an error of zero is impossible