Which of the following is not correct about MAPE? MAPE is an ideal measure of forecast error
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Question:
Which of the following is not correct about MAPE?
MAPE is an ideal measure of forecast error whenever the time series has zero values
MAPE is a unit free measure unlike MAD
MAPE can be undefined
The minimum value of MAPE is zero
Say you have a monthly time series. If the sample ACF value at lag 6 is -0.4, which of the following description is correct?
a. On average, time series values that are 12 months apart are positively correlated
b. On average, time series values that are 6 months apart are negatively correlated
c. On the average, time series values that are 6 months apart are positively correlated
d. On the average, time series values that are 12 months apart are negatively correlated
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