Question

The data show the chest size and weight of several bears. Find the regression equation letting chest size be the independent variable. Then, find the best predicted weight of a bear with a chest size of 50 inches. Use a significance level 0.05 and check to the histogram to see if the regression equation is appropriate. (Round coefficients and predicted values to the nearest tenth).

Chest Size (inches) 49 51 53 61 57 45 Weight(pounds) 368 382 420 481 457 287

• (a) The regression equation is:

• (b) Determine whether it is or it is not appropriate to use the regression equation to make this prediction? Explain.

(c) Based on this sample data, what is the best predicted weight for a bear with a chest size of 50 inches?

Answer 1

I use R software for calculations.