Question: Referring to Example 5, Chapter 11, and Table D.l3 of the Data Bank, we now use two predictors, x1 = girth (cm) and x2 =

Referring to Example 5, Chapter 11, and Table D.l3 of the Data Bank, we now use two predictors, x1 = girth (cm) and x2 = length to predict y = weight (lb) of a polar bear. The output from a regression analysis is given in Table 10.
(a) How many polar bears were included in the analysis?
(b) Identify the least squares estimates

and

(c) What model is suggested from this analysis?
(d) What is the proportion of y variability explained by the regression on x1 and x2?

(

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