11.14 J. Matis and T.Wehrly (Biometrics, 35, no. 1, March 1979) report the data given in table below on the proportion of green sunfish that survive a fixed level of thermal pollution for varying lengths of time:

a Fit the linear model by the method of least squares.

b Plot the data points and graph the line found in (a). Does the line fit through the points?

c Compute SSE and s2. Interpret variance in context.

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Proportion of 1.00 0.95 0.95 0.90 0.85 0.70 0.65 0.60 0.55 0.40 Survivors (y) Scaled Time (x) 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55