Question

)Enrollment in a particular class for the last four semesters has been 120, 126, 110, and 130 semester moving average was used to forecast enrollment (this is sometimes refered to as a naive Thus, the forecast for the second semester it would be 110. What would the MSE be for this situation? reg 2) Enrollment in a particular class for the last four semesters has been 122.128, 100, and 153 listed from oldest to most recent). The best forecast of enrollment next semester, based on a three-semester moving average, would be la7. 6666667 127.67 3) Daily demand for newspapers for the last 10 days has been as follows: 12, 13, 16, 15, 12, 18, 14, 12, 13, 15 (listed from oldest to most recent). Forecast sales for the next day using a three-day weighted moving average where the weights are 3. 1, and 1 (the highest weight is for the most recen number) natlot ISt 0+8rt lo But 45 5 lo 3+1+1

Answer 1

1)

y	y^	(y-y^)^2
120
126	120	36
110	126	256
130	110	400
		692
	MSE	230.6667