standard eror of the sample mean

6:40

5:04

3:35

2:25

کوتاه

10:49

4:25

کوتاه

6:49

2:13

11:35

2:25

2:03

16:18

4:19

9:31

9:31

1:11

کوتاه

1:31:31

4:15

18:10

2:56

3:52

28:12

4:49

2:58

10:01

10:01

5:58

16:53

13:44

2:44

1:09:22

2:14

1:10

1:04

4:23

2:19

2:53