Consider a regression problem in which a patient’s reaction Y to a new drug B is to be related to his reaction X to a standard drug A. Suppose that for each value x of X, the regression function is a polynomial of the form E(Y) = β0 + β1x + β2x2. Suppose also that 10 pairs of observed values are as shown in Table 11.1 on page 690. Under the standard assumptions of the general linear model, |

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