Based on the regression output, what is the size of the typical error when predi

Question

Based on the regression output, what is the size of the typical error when predicting weight from wing length?

1.2-1.5 Sparrows. Priscilla Erickson from Kenyon College collected data on a stratified random sample of 116 Savannah sparrows at Kent Island. The weight (in grams) and wing length (in mm) were obtained for birds from nests that were reduced, controlled, or enlarged. The data9 are in the file Sparrows. Use the computer output below in Exercises 1.2-1.5. The regression equation is Weight 1.37 0.467 WingLength Predictor Constant WingLength 0.4674 0.03472 13.46 0.000 Coef SE Coe:f 1.3655 0.9573 1.43 0.156 S 1.39959 R-Sq 61.4% R-Sq(adj) .. 61.1% Analysis of Variance Source Regression Residual Error 114 223.31 1.96 Total DF MS 1 355.05 355.05 181.25 0.00 115 578.36

Explanation / Answer

Based on the regression output, +/-(1.39959) grams is the typical error when predicting weight from wing length.

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