Question: =+13.61 Exercise 13.8 gave data on x 5 treadmill run time to exhaustion and y 5 20-km ski time for a sample of 11 biathletes.

=+13.61 Exercise 13.8 gave data on x 5 treadmill run time to exhaustion and y 5 20-km ski time for a sample of 11 biathletes. Use the accompanying MINITAB output to answer the following questions.

The regression equation is ski = –88.8 – 2.33tread Predictor Coef Stdev t-ratio p Constant 88.796 5.750 15.44 0.000 tread 2.3335 0.5911 3.95 0.003 s = 2.188 R-sq = 63.4% R-sq(adj) = 59.3%

Analysis of Variance Source DF SS MS F p Regression 1 74.630 74.630 15.58 0.003 Error 9 43.097 4.789 Total 10 117.727

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