00:01
To identify the given values and parameters that is is equal to 0 .50 smoothening constant minus beta is equal to 0 .90 trending smoothing constant.
00:18
The observed values of y for 10 periods is 464, 465, 463, 461, 467, 477, 493, 508, 521, 531 and 541.
00:45
So calculate the smoothened values using the hals experimental smoothing formula.
00:53
The first smoothed value is the same as the first observed value that is 464 minus for second smoothed value we use the formula smoothed 2 smoothed 2 is equal to alpha into observed 2 plus 1 minus alpha into smoothed 1 plus trend 1.
01:55
So smoothed 2 is equal to 0 .50 into 465 plus 1 minus 0 .50 into 464 plus 3 is equal to 466 minus repeat this calculation for remaining periods to get smoothed values for all 10 periods.
02:27
So same way we can to calculate the trend forecast values using hals exponential smoothing formula.
02:35
The first trend forecast value is the same as the first trend forecast value we use the formula trend forecast...