Given: A_t = the actual value of the time series at time t,F_t = the forecast value for time t,and n = the number of forecast values.Identify the formula used to calculate the mean absolute percentage error.
A)MAPE = Given: At = the actual value of the time series at time t,Ft = the forecast value for time t,and n = the number of forecast values.Identify the formula used to calculate the mean absolute percentage error. A)MAPE = × 100 B)MAPE = × × 100 C)MAPE = × 100 D)MAPE = × 100

Given: A<sub>t</sub> = the actual value of the time series at time t,F<sub>t</sub> = the forecast value for time t,and n = the number of forecast values.Identify the formula used to calculate the mean absolute percentage error. A)MAPE = × 100 B)MAPE = × × 100 C)MAPE = × 100 D)MAPE = × 100

× 100
B)MAPE = × Given: At = the actual value of the time series at time t,Ft = the forecast value for time t,and n = the number of forecast values.Identify the formula used to calculate the mean absolute percentage error. A)MAPE = × 100 B)MAPE = × × 100 C)MAPE = × 100 D)MAPE = × 100

× 100
C)MAPE = Given: At = the actual value of the time series at time t,Ft = the forecast value for time t,and n = the number of forecast values.Identify the formula used to calculate the mean absolute percentage error. A)MAPE = × 100 B)MAPE = × × 100 C)MAPE = × 100 D)MAPE = × 100

× 100
D)MAPE = Given: At = the actual value of the time series at time t,Ft = the forecast value for time t,and n = the number of forecast values.Identify the formula used to calculate the mean absolute percentage error. A)MAPE = × 100 B)MAPE = × × 100 C)MAPE = × 100 D)MAPE = × 100

× 100

The Data for the Number of Guitars Sold for the Past

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