Consider the following data. We want to monitor the forecasts. Period.Demand.Forecasts .
Consider the following data. We want to monitor the forecasts.
Period…………..Demand…………Forecasts
……1……………….263………………..–
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……3……………….289………………..252
……4……………….287………………..289
……5……………….307………………..287
Calculate the UCL and LCL for the appropriate control chart?
Calculate the cumulative error, MAD, and tracking signals.
Error of period 2
Your answer
Error of period 3
Your answer
Error of period 4
Your answer
Error of period 5
Your answer
Overal MSE:
Your answer
UCL to monitor the magnitude of the errors
Your answer
LCL to monitor the magnitude of the errors
Your answer
Are the errors in control?
Yes
No
Cumulative error up to period 2
Your answer
Cumulative error up to period 3
Your answer
Cumulative error up to period 4
Your answer
Cumulative error up to period 5
Your answer
MAD up to period 2
Your answer
MAD up to period 3
Your answer
MAD up to period 4
Your answer
MAD up to period 5
Your answer
Tracking signal of period 2
Your answer
Tracking signal of period 3
Your answer
Tracking signal of period 4
Your answer
Tracking signal of period 5
Your answer
Based on your tracking signals, are the forecasts biased?
Yes
No