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ANSWERS INCLUDED. The following data gives the number of hours 7 students spent studying and their...

ANSWERS INCLUDED. The following data gives the number of hours 7 students spent studying and their corresponding grades on their exams.

Hours Spent Studying 1.5 2.5 3.5 4 4.5 5 5.5
Grades 63 66 69 75 87 90 96

Step 1 of 3 :  

Calculate the correlation coefficient, r. Round your answer to six decimal places.
CORRECT ANSWER: 0.943878

Step 2 of 3 :  

Determine if r is statistically significant at the 0.01 level.

CORRECT ANSWER: YES IT IS STATISTICALLY SIGNIFICANT

Step 3 of 3 :  

Calculate the coefficient of determination, r2. Round your answer to three decimal places.
CORRECT ANSWER : 0.891

Math   Statistics-And-Probability   
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