Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Industrial Engineering Production Planning and Inventory Control Forecasting
In a time series forecasting model, the demands for five time periods were 10, 13, 15, 18 and 22. A linear regression fit resulted in an equation F = 6.9 + 2.9t where F is the forecast for period t. The sum of the absolute deviations for the five data is
1
2.3
2
0.2
3
-1.2
4
2.2