Question 4 A pharmacist has been monitoring sales of a certain over-the-counter pain reliever. Monthly sales...

Question 4

A pharmacist has been monitoring sales of a certain over-the-counter pain reliever. Monthly sales during the last 15 months were:

Month	Number sold	Month	Number sold	Month	Number sold
1	36	6	49	11	52
2	38	7	50	12	55
3	42	8	49	13	54
4	44	9	52	14	56
5	48	10	48	15	57

Using 3-Month Weighted Moving Average using 0.2, 0.3, and 0.5 with the heaviest weights applied to the most recent months, develop forecasts for months from 11 to 16.
Using Exponential Smoothing using an α = 0.4 and the 10^th Month forecast of 50, develop forecasts for months from 11 to 16.
Using Trend Projection, develop forecasts for months from 11 to 16.
Justify which method you would suggest using to predict future sales.

Expert Solution

d) based on the error measure MAD, it is better to select trend projection method of forecasting, because it provides more accurate results, as compared to other two methods.

(Please like the answer it will encourage me.)

keosha answered 4 months ago

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