31) __________ measures the strength of the relationship between two variables.
32) The __________ is the percentage of variation in the dependent variable that results from the independent variable.
33) Longer period moving averages react more __________ to recent demand changes than do shorter period moving averages.
34) The __________ movements or variations in demand exhibit no pattern and occur on a random basis.
35) The __________ is the sum of the absolute value of forecasting errors divided by the number of periods in which a forecast was made.
36) The __________ is the square of the average of the sum of the squared errors.
37) MAPD measures __________.
38) __________ is a type of exponential smoothing that can also include trend.
Given the following data on the number of pints of ice cream sold at a local ice cream store for a 6-period time frame:
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39) Compute a 3-period moving average for period 4.
40) Compute a 3-period moving average for period 6.