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As the manager of GenCorp. (a manufacturer of gas powered generators) you have been asked to determine the nature of their long-run cost structure. Some cost data has been collected for you. Quantity of Total Cost of Total Costs of Average Total Generators Labor Tools Total COSt Cost 11 192 127 12 200 136 13 206 145 14 210 150 15 220 155 16 240 160 17 255 170 18 280 188 19 320 212 20 365 235 1. Fill in the missing values in the able. 2. Graph the firm's average total cost curve. 3. Determine the range of output levels over which there exists increasing returns to scale, constant returns to scale and decreasing scale. 4. Show on the graph how your answer to question 3 above relates to the shape of this curve