Ch.4 equations

Naive approach

Moving average simple

Weighted moving average

Simple exponential smoothing

Forecast error

Mean error

mean absolute deviation

Mean squared error

Mean absolute percent error

Exponential smoothing with trend adjustment

Trend projections (simple linear regression)

Trend projections (multiple linear regression)

Seasonal indicies (average seasonal demand) total seasonal

Seasonal indicies (average demand season) specific season

Seasonal indicies ( seasonal index)

Seasonal indicies ( expected seasonal demand)

Correlation coefficient