Consider the data on male wolves in Table D.9 of the Data Bank concerning age (years) and canine length (mm).
(a) Obtain the least squares fit of canine length to the predictor age.
(b) Obtain the least squares fit of canine length to a quadratic function of the predictor age. The MINITAB commands are

(c)What proportion of the y variability is explained by the quadratic regression model?
(d) Compare the estimated standard deviations, s, of the random error term in parts (a) and (b).

Transcribed Image Text:

Data DBT C6 28.7 27.0 27224.5 Dialog box: Stat Regression Fitted line plot Type Có in Response Type C2 in Predictor Click Quadratic. Click Ok