Concept explainers
Lobster fishing study. Refer to the Bulletin of Marine Science (April 201 0) study of teams of fishermen fishing for the red spiny lobster in Baja California Sur, Mexico, Exercise 11.50 (p. 645). Recall that simple linear regression was used to model y = total catch of lobsters (in kilograms) during the season as a
XLS TAT output for Exercise 11 .70
a. Locate and interpret the coefficient of determination, r2 , on the printout.
b. Locate and interpret the coefficient of
c. In Exercise 11.50, you conducted a test to determine that total catch (y) is negatively linearly related to search frequency (x). Which of the two statistics, r or r2, can be used to partially support this inference? Explain.
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Statistics for Business and Economics, Student Value Edition (13th Edition)
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