Question 427:
1Answer:
No answer provided yet.Below are the results of the Regression Equation from Minitab. The residuals and standardized residuals are near the bottom.
The regression equation is
Age (yr) = 564 - 111 Weight (gm)
Predictor Coef SE Coef T P
Constant 564.4 115.1 4.90 0.000
Weight (gm) -111.03 23.16 -4.79 0.000
S = 8.40027 R-Sq = 44.2% R-Sq(adj) = 42.3%
Analysis of Variance
Source DF SS MS F P
Regression 1 1622.4 1622.4 22.99 0.000
Residual Error 29 2046.4 70.6
Total 30 3668.8
Unusual Observations
Weight
Obs (gm) Age (yr) Fit SE Fit Residual St Resid
5 4.98 38.00 11.43 1.52 26.57 3.22R
8 4.80 28.00 31.86 4.34 -3.86 -0.54 X
25 4.92 40.00 18.42 1.97 21.58 2.64R
28 4.80 22.00 31.30 4.24 -9.30 -1.28 X
R denotes an observation with a large standardized residual.
X denotes an observation whose X value gives it large influence.