what is a null hypothesis and alternate hypothesis

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7:08

4:51

1:52:00

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24:21

کوتاه

12:05

2:35

2:08

3:45

10:05

2:35

2:54

2:23

18:11

3:32

15:02

13:14

7:05

7:14

22:10

6:00

11:02

1:46:54

1:24

1:42:54

46:12

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1:22:47

4:09

7:35

5:14

4:39

2:18

3:45

16:01

12:12

6:41

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