he first$$ forecast, Upper F $1,$ was derived by observing Upper A $1$ and setting Upper F $1$ equal to Upper A $1.$ Subsequent forecasts were derived by exponential smoothing.

Part $2$

The smoothing constant $($alpha$)$ used to derive the subsequent forecasts$=$

$$

enter your response here $($round your response to two decimal $$places$).($Hint: To determine alpha$,$ use either the relationship for period $3$ or$4.)$