An agricultural scientist planted alfalfa on several plots of land, identical except for the soil pH. Following are the dry matter yields (in pounds per acre) for each plot. pH 4.6 4.8 5.2 5.4 5.6 5.8 Yield 1028 1633 1429 1652 1583 2470 For the given set of data average value of "pH" is 5.23 and average "Yield" is 1632.5. Compute the least-squares line for predicting yield from pH.

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