Please show how you would get these answers? show calculations!!

forecast method

Question 6

Enrollment in a tea-drinking class for the last four semesters has been 120, 126, 110, and 130 (listed from oldest to most recent). Develop a forecast of enrollment next semester using exponential smoothing with an alpha = 0.2. Assume that an initial forecast for the first semester was 120 (so the forecast and the actual were the same).

121.17

Question 7

Demand for basketball balls at Nike Sport store at Yonge and Dundas is forecasted using the following regression equation that developed from sales data (Jan 2019 to September 2020):

Y = 81 + 2.5X where X is the number of months.

1. What is the forecast for basketball ball demand for the month of November 2020?
2. What is the forecast for basketball ball demand for the month of June 2021?

1. 138.5 b. 156

Question 8

Use simple exponential smoothing with = 0.4 to forecast organic donut sales at Tim Hilton for March. Assume that the forecast for January was for 28 organic donuts.

Month	Organic Donut Sales
January	32
February	33
March	28
April	39

30.96

Question 9

The following table shows the actual and forecast values.

Actual	Forecast	Actual	Forecast
10	10.8	26	24.5
13	13.6	28	27.2
17	16.3	29	29.9
19	19	32	32.6
22	21.7	35	35.3

What is the bias of the forecast?

0.01

What is the MAD of the forecast?

0.65

What is the MSE of the forecast?

0.573

What is the MAPE of the forecast?

3.26%