Month Sales 3mo MA Weighted an 35,645 Feb 35,456 March 31,270 34,124 April May 32,129 32,952 34,456 32,618 une 35,256 33,947 uly 36,218 35,310 Aug Sept 35,456 35,643 34,250 35,308 Oct 32,156 35,954 Nov 30,125 32,177 ner Dec 32 275 31 519

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Please see attached image. I need to calculate a weighted moving average where the weights should be 0.2, 0.3, and 0.5.

 

Month
Jan
Feb
March
April
May
June
July
Aug
Sept
Oct
Nov
Dec
Sales
3mo MA Weighted
35,645
35,456
31,270
34,124
32,129
32,952
34,456
32,618
35,256
33,947
36,218
35,310
35,456
35,643
34,250
35,308
32,156
35,954
30,125
32,177
32,275
31,519
Transcribed Image Text:Month Jan Feb March April May June July Aug Sept Oct Nov Dec Sales 3mo MA Weighted 35,645 35,456 31,270 34,124 32,129 32,952 34,456 32,618 35,256 33,947 36,218 35,310 35,456 35,643 34,250 35,308 32,156 35,954 30,125 32,177 32,275 31,519
Expert Solution
Step 1

Example : 

3MA (April) = Jan + Feb + March 3

_________________________

Weighted (April) = 0.5×March + 0.3×Feb +0.2×Jan

____________________________

 

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