76 Lobster fishing study. Refer to the Bulletin of Marine Science (April 2010) study of teams of fishermen fishing for the red spiny lobster in Baja California Sur, Mexico, Exercise 55 . Recall that simple linear regression was used to model y = total catch of lobsters (in kilograms) during the season as a function of x = average percentage of traps allocated per day to exploring areas of unknown catch (called search frequency ).

a. Locate and interpret the coefficient of determination, r 2 , on the SAS printout .

b. Note that the coefficient of correlation, r , is not shown on the SAS printout. Is there information on the printout to determine whether total catch ( y ) is negatively linearly related to search frequency ( x )? Explain.