For question #1, only use months April, May and June to calculate MAD.

example

Month	actual	forecast	error
J	10	na	na
F	8	na	na
M	9	na	na
A	12	11	1
M	13	9	4
Ju	10	9	1
		MAD	2

note: for the weighted three-month moving average technique, using the following:

forecast April: 0.2*Jan + 0.3*Feb + 0.5*Mar

forecast May: 0.2*Feb + 0.3*Mar + 0.5*Apr

forecast June: 0.2*Mar + 0.3*Apr + 0.5*May

1d - of the four forecast methods, which one yields the lowest MAD value?

Group of answer choices

3-month moving average

weighted 3-month moving average

linear trend

exponential smoothing

1d - of the four forecast methods, provide the lowest MAD value?

5 - of the three forecast methods, provide the lowest MAD value.

5 - of the three forecast methods, provide the lowest MSE value.

7 - Provide the RSFE value (it's a number) for the forecast method that overproduces forecast sales