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
Posted: Wed Dec 15, 2021 10:37 am
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