1.Consider the following historical data gathered by a retail store: Month: Mar
ID: 3048821 • Letter: 1
Question
1.Consider the following historical data gathered by a retail store:
Month: Mar Apr May Jun Jul Aug
Demand: 18 16 16 14 12 14
Use a simple moving average with n = 4 to forecast demand for November.
14.0
15.33
15.6
18.4
2.
Consider the following historical data gathered by a retail store:
Month: Mar Apr May Jun Jul Aug
Demand: 19 15 17 15 13 12
Use linear regression (assuming b0 = 21.92, b1 = -1.23, and January is month one) to forecast demand for September.
7.16
12.12
13.64
10.85
14.0
15.33
15.6
18.4
Explanation / Answer
1)forecaast for november =(16+14+12+14)/4= 14
2) as for september month number is 9
forecast demand for September =21.92-1.23*9= 10.85
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