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In studying the relationship between age and time spent exercising, suppose you computed r=0.307 using n=20 data points. Using the critical values table below, determine

In studying the relationship between age and time spent exercising, suppose you computed r=0.307 using n=20 data points. Using the critical values table below, determine if the value of r is significant or not.

df CV (+ and -) df CV (+ and -) df CV (+ and -) df CV (+ and -)

1

0.997

11

0.555

21

0.413

40

0.304

2

0.950

12

0.532

22

0.404

50

0.273

3

0.878

13

0.514

23

0.396

60

0.250

4

0.811

14

0.497

24

0.388

70

0.232

5

0.754

15

0.482

25

0.381

80

0.217

6

0.707

16

0.468

26

0.374

90

0.205

7

0.666

17

0.456

27

0.367

100

0.195

8

0.632

18

0.444

28

0.361

9

0.602

19

0.433

29

0.355

10

0.576

20

0.423

30

0.349

Select the correct answer below:

r is significant because it is between the positive and negative critical values.

r is not significant because it is between the positive and negative critical values.

r is significant because it is not between the positive and negative critical values.

r is not significant because it is not between the positive and negative critical values.

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