The following data gives the number of hours 77 students spent studying and their corresponding grades on their midterm exams. Hours Spent Studying 0.5 1 1.5 2 2.5 4 5.5 Midterm Grades 60 66 75 78 84 87 90   Step 2 of 3: Determine if r is statistically significant at the 0.05 level.   Step 3 of 3: Calculate the coefficient of determination, r2. Round your answer to three decimal places.

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