Question

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

Hours Spent Studying	1	1.5	2	2.5	3.5	4	6
Midt erm Grades	66	75	78	81	87	90	93

Copy Data

Step 1 of 4 :  Calculate the correlation coefficient, r. Round your answer to six decimal places.

Step 2 of 4: Determine if r is statistically significant at the 0.01 level

Step 3 of 4: Determine if r is statistically significant at the 0.05 level

Step 4 of 4: Calculate the coefficient of determination, r^2. Round your answers to three decimal places

Answer 1

The statistical software output for this problem is :

Step 1 :

correlation coefficient, r = 0.928329

Step 2 :

r is not statistically significant .

Step 3 :

r is statistically significant

Step 4 :

coefficient of determination = 0.861795