Can you form an estimate about sign and magnitude of r

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For the following data sets find the equation of the regression line and construct a scatter plot of the data and draw a regression line in the scatterplot. Can you form an estimate about the sign and magnitude of r? Calculate r and check your estimate. Use Microsoft Excel to perform these tests.

a. The number of hours spent playing video games on the weekend and the age (in years) of 8 children).

Age

8

12

13

11

9

14

13

15

Hours

4

6

6

7

5

8

8

5

b. The average time spent watching television and the average time spent playing sports each day for 8 children. This is measured in minutes.

Television

35

30

15

60

100

45

40

35

Sports

30

30

45

60

15

30

30

50

Reference no: EM13477996

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