You have been presented with the following cost data and asked to fit a statistical cost function.
Quantity     Total cost
10                 104
20                 107
30                  109
40                 111.5
50                   114.5
60                    118
70                   123
80                    128
90                    137
100                  150
If the data represent 10 months of production for one plant of a specific company, would you consider this to be a short run analysis?
How would your answer to question 3 changes if you were told that the data represent 10 different plants during a particular month?