Is there an association between starting post-college salary and hours a week playing video games? The table below summarizes the results from a sample of 100 randomly surveyed participants. Calculate the coefficient of determination.

a) Calculate the coefficient of determination.
b) It can be shown that r = b₁ s_x/s_y, where s_y is the standard deviation of the response variable and s_x is the standard deviation of the predictor. If the sign of the slope was negative, s_x = 5.57, and s_y = 2609.05, find b₁.

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Source Regression Error Total DF SS 1 98 99 131 798 255 542 108 218 MS 131 798 255 5 531 717 F 23.83 p-Value 0