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The following table shows the hours studied and corresponding test grade earned by students on a recent test. Calculate the correlation coefficient, r, and determine
The following table shows the hours studied and corresponding test grade earned by students on a recent test. Calculate the correlation coefficient, r, and determine whether r is statistically significant at the 0.01 level of significance. Round your answer to the nearest thousandth. Critical Values of the Pearson Correlation Coefficient X Hours Studied and Test Grades Coefficient Hours Studied 0.75 1.75 2.75 3 4.25 5.75 a = 0.05 a = 0.01 Test Grade 58 90 72 74 79 87 96 91 4 0.950 0.990 Copy Data 5 0.878 0.959 6 0.811 0.917 7 0.754 0.875 Keypad 0.707 0.834 Keyboard Shortcuts 9 0.666 0.798 10 0.632 0.765 r = 11 0.602 0.735 Is r statistically significant at the 0.01 level of significance? 12 0.576 0.708 O Yes O No 13 0.553 0.684 14 0.532 0.661 Submit
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