Month	1	2	3	4	5	6	7
Value	24	15	21	12	19	21	16

b)	Develop a three-month moving average for this time series. Compute MSE and a forecast for month 8.
	If required, round your answers to two decimal places. Do not round intermediate calculation.
	MSE:
	The forecast for month 8:

c)	Use = 0.2 to compute the exponential smoothing values for the time series. Compute MSE and a forecast for month 8.
	If required, round your answers to two decimal places. Do not round intermediate calculation.
	MSE:
	The forecast for month 8:
e)	Use trial and error to find a value of the exponential smoothing coefficient that results in the smallest MSE.
	Do not round intermediate calculations. Use a two-decimal digit precision for the exponential smoothing coefficient.