Example 14.3 The following table shows the tons of steel produced versus the number o workers in a small steel mill. Observation number 1 I 2 3 4 5 6 7 8 Estimate the line of regression using Number of workers 1 3 7 8 x-4.5 1/2 Tons of steel produced y, 4 6 10 10 15 15 16 20

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Q: 0 1 2 3 4 5 6 179 26 2478 15699 368

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