Question

In: Statistics and Probability

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

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

Hours Spent Studying 0 1 2.5 3 4 4.5 5.5
gRADES 60 69 72 75 78 81 90

Step 1 of 3:

Calculate the correlation coefficient, r. Round your answer to six decimal places.

Step 2 of 3:

Determine if r is statistically significant at the 0.050.05 level.

Step 3 of 3:

Calculate the coefficient of determination, r2r2. Round your answer to three decimal places.

Solutions

Expert Solution

Solution:

1) Correlation coefficient is:

2) test of significance:

3) Coefficient of determination:

orchestra answered 2 years ago
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