The following computer output is from fitting a regression model to the snake length data of Example 12.2.2.
The regression equation is
Weight = -301 + 7.19 Length

s = 12.50 R-sq = 89.1% R-sq(adj) = 87.5%
Analysis of Variance

(a) Use the output to construct a 95% confidence interval for β1.
(b) Interpret the confidence interval from part (a) in the context of this setting.

Transcribed Image Text:

Coef Stdev t-ratio Predictor Constant 301.09 60.19.00 0.000 Length 7.1919 0.9531 7.55 0.000 SOURCE DF SS Regression 1 8896.3 8896.3 56.94 0.000 Error Total MS 7 1093.7 156.2 8 9990.0