19. Consider the following data, which lists the winning times for the women's 400-meter

freestyle swim from 1932 through 1996:

\f20. Consider the following computer output for a linear regression of height on weight : The regression equation is Height = Predictor Coef Stdev t-ratio p Constant 13.3480 0.1593 83.81 0.000 Weight -0. 156000 0.007385 -21.12 0.000 s = 0.03873 R-sq = 98.2% R-sq(adj) = 98.0%21. Consider the following output for a linear regression: The regression equation is In(y) = 7.55 - 0.556 x Predictor Coef Stdev t-ratio P Constant 7.5455 0.4511 16.73 0.000 X -0.55630 0.09754 5.70 0.000 s = 0.9029 R-sa = 74.7% R-so(adj) = 72.4%