E 7) Suppose you fit the second-order model y = B. + B,X+B_x' + € to n=25 data points. Your estimate of B, is 0.47 and t

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E 7 Suppose You Fit The Second Order Model Y B B X B X To N 25 Data Points Your Estimate Of B Is 0 47 And T 1 (24.52 KiB) Viewed 71 times

E 7) Suppose you fit the second-order model y = B. + B,X+B_x' + € to n=25 data points. Your estimate of B, is 0.47 and the estimated standard error of the estimate is 0.15. a) Test Ho: B2 = 0 against H: B, +0. Use a=.05 b) Suppose you want to determine only whether the quadratic curve opens upward; that is as x increases, the slope of the curve increases. Give the test statistic and the rejection region for the test for a = .05. Do the data support the theory that the slope of the curve increases as x increases? Explain