0:00
Hello everyone.
00:01
In this problem, we have given observations of the demand for a certain part stocked as a at a part supply depot during the calendar year 2013 were.
00:12
Here we have month, january, february, march, april, may and june.
00:26
Here we have their demand 89 57 144 -217 -221 -1 -2 -7 -280 and here the remaining months july august, september, october, november, december.
00:54
Demand 223 286 212212 275 188 312 275 188 312 now in the first part the moving average forecast for nth period is computed and we compute this by the formula of forecast period n is equal to n minus 2 plus y n minus 1 over 2 so 2 month to moving average here we have month demand and here we calculate the moving average or we say forecast right we write it as forecast now month is january february march march, april, june, sorry, april, may, may, june, july, august, september, october, november and december.
02:34
And their demands are 89, 57, 144, 221, 177, 177.
02:46
280, 223, 286, 212, 275, 188 and 312, now we calculated it by 89 plus 57 over 2, that is 73.
03:09
In the same way, our remaining values will be, here we have 199, 228 .5, 255, 253, 51 .5, 254 .5, 249, 243 .5, 231 .5.
03:33
Here we have 231 .2 .2301.
03:40
And 250.
03:43
So, 3 month moving average.
03:54
Here we have the month, their demand and moving average.
04:04
We have january, february, march, april, may, june, july and in the demand we have 89 57 144 221 1717 280 to 28 23 august september october and december and december here we have 286 21212 275 -182 -282 -27 75 188 and 388 and 3 1 -2.
04:56
Now for 3 monthly moving average we have these 3 are empty because 3 month moving average.
05:06
In the next we have 89 plus 57 plus 144 over 3.
05:11
That is 96 .36 .367 and in the same way the next value is 180.
05:19
Point triple 67 and here we have 226 then 226 2262 2262 267 263 240 point 33 and our next is 257 257 .567 and 225 here we have again january and here 258 .33...