Skip to main content
Subscribe
Log In
More
Log in via Institution
Log in via OpenAthens
Log in via RCEM
Log in using your username and password
For personal accounts OR managers of institutional accounts
Username
*
Password
*
Forgot your log in details?
Register a new account?
Forgot
your user name or password?
Basket
Search
More
Search for this keyword
Advanced search
Latest content
Current issue
Archive
Authors
About
Search for this keyword
Advanced search
Close
More
Main menu
Latest content
Current issue
Archive
Authors
About
Subscribe
Log in
More
Log in via Institution
Log in via OpenAthens
Log in via RCEM
Log in using your username and password
For personal accounts OR managers of institutional accounts
Username
*
Password
*
Forgot your log in details?
Register a new account?
Forgot
your user name or password?
BMJ Journals
You are here
Home
Archive
Volume 18, Issue 3
Article 7. An introduction to hypothesis testing. Parametric comparison of two groups—2
Email alerts
Article metrics
Article menu
Article
Text
Article
info
Citation
Tools
Share
Rapid Responses
Article
metrics
Alerts
PDF
An introduction to statistics
Article 7. An introduction to hypothesis testing. Parametric comparison of two groups—2
Online download statistics by month:
Online download statistics by month: April 2001 to September 2024
Abstract
Full
Pdf
Apr 2001
0
204
127
May 2001
0
148
12
Jun 2001
0
86
1
Jul 2001
0
21
10
Aug 2001
0
21
6
Sep 2001
0
23
25
Oct 2001
0
17
8
Nov 2001
0
8
3
Dec 2001
0
7
4
Jan 2002
0
6
1
Feb 2002
0
17
9
Mar 2002
0
10
4
Apr 2002
0
1
0
May 2002
0
1
1
Jun 2002
0
8
6
Jul 2002
0
10
8
Aug 2002
0
4
1
Sep 2002
0
8
3
Oct 2002
0
41
23
Nov 2002
0
15
7
Dec 2002
0
11
5
Jan 2003
0
15
9
Feb 2003
0
9
14
Mar 2003
0
10
7
Apr 2003
0
14
6
May 2003
0
7
11
Jun 2003
0
13
9
Jul 2003
0
40
7
Aug 2003
0
8
12
Sep 2003
0
17
5
Oct 2003
0
38
10
Nov 2003
0
20
10
Dec 2003
0
10
3
Jan 2004
0
14
7
Feb 2004
1
15
6
Mar 2004
0
11
4
Apr 2004
0
11
3
May 2004
0
30
13
Jun 2004
0
29
11
Jul 2004
0
47
27
Aug 2004
1
52
26
Sep 2004
0
63
33
Oct 2004
11
72
26
Nov 2004
10
78
19
Dec 2004
11
40
16
Jan 2005
10
60
18
Feb 2005
8
97
17
Mar 2005
17
94
34
Apr 2005
10
84
27
May 2005
7
85
28
Jun 2005
5
98
22
Jul 2005
5
52
22
Aug 2005
10
82
25
Sep 2005
18
79
29
Oct 2005
12
103
49
Nov 2005
16
98
34
Dec 2005
7
61
21
Jan 2006
6
42
16
Feb 2006
8
51
19
Mar 2006
4
47
30
Apr 2006
6
49
20
May 2006
5
40
24
Jun 2006
5
39
20
Jul 2006
3
30
16
Aug 2006
3
31
20
Sep 2006
5
74
23
Oct 2006
1
167
48
Nov 2006
5
157
33
Dec 2006
2
104
30
Jan 2007
2
96
40
Feb 2007
2
126
18
Mar 2007
9
149
29
Apr 2007
65
35
24
May 2007
76
22
10
Jun 2007
38
20
11
Jul 2007
40
36
18
Aug 2007
29
18
15
Sep 2007
14
16
12
Oct 2007
44
16
15
Nov 2007
28
23
11
Dec 2007
17
11
5
Jan 2008
13
11
14
Feb 2008
23
22
7
Mar 2008
17
15
9
Apr 2008
36
15
10
May 2008
12
11
7
Jun 2008
13
10
6
Jul 2008
17
12
5
Aug 2008
33
19
14
Sep 2008
54
30
7
Oct 2008
28
5
6
Nov 2008
23
15
8
Dec 2008
13
9
2
Jan 2009
11
6
5
Feb 2009
19
14
15
Mar 2009
25
9
14
Apr 2009
24
17
9
May 2009
26
14
5
Jun 2009
21
8
12
Jul 2009
18
4
8
Aug 2009
11
10
9
Sep 2009
28
7
5
Oct 2009
30
18
14
Nov 2009
24
11
7
Dec 2009
22
3
1
Jan 2010
11
9
7
Feb 2010
13
2
1
Mar 2010
12
2
4
Apr 2010
6
11
3
May 2010
8
3
4
Jun 2010
8
10
5
Jul 2010
7
10
9
Aug 2010
36
13
3
Sep 2010
99
36
9
Oct 2010
81
42
4
Nov 2010
97
36
5
Dec 2010
86
29
4
Jan 2011
120
27
3
Feb 2011
154
44
3
Mar 2011
216
51
2
Apr 2011
128
31
3
May 2011
246
21
9
Jun 2011
126
22
5
Jul 2011
208
16
2
Aug 2011
220
20
5
Sep 2011
330
32
10
Oct 2011
224
32
2
Nov 2011
94
99
9
Dec 2011
7
189
12
Jan 2012
9
184
18
Feb 2012
6
141
7
Mar 2012
6
253
11
Apr 2012
5
247
7
May 2012
6
283
11
Jun 2012
7
196
13
Jul 2012
7
180
15
Aug 2012
4
156
9
Sep 2012
14
200
10
Oct 2012
16
261
7
Nov 2012
0
201
17
Dec 2012
0
55
6
Jan 2013
0
54
6
Feb 2013
0
67
16
Mar 2013
0
73
13
Apr 2013
0
84
19
May 2013
0
72
14
Jun 2013
3
40
0
Jul 2013
1
45
3
Aug 2013
6
24
9
Sep 2013
6
54
3
Oct 2013
1
84
2
Nov 2013
1
68
8
Dec 2013
3
83
6
Jan 2014
0
60
6
Feb 2014
3
62
9
Mar 2014
3
80
7
Apr 2014
7
129
11
May 2014
2
102
1
Jun 2014
7
80
9
Jul 2014
8
84
10
Aug 2014
3
81
11
Sep 2014
3
72
4
Oct 2014
1
54
4
Nov 2014
5
90
5
Dec 2014
1
65
4
Jan 2015
5
64
6
Feb 2015
5
71
11
Mar 2015
5
72
8
Apr 2015
5
54
4
May 2015
3
50
4
Jun 2015
2
53
6
Jul 2015
4
63
0
Aug 2015
4
48
3
Sep 2015
8
70
6
Oct 2015
3
34
9
Nov 2015
4
33
8
Dec 2015
2
36
6
Jan 2016
10
35
7
Feb 2016
6
63
4
Mar 2016
6
39
9
Apr 2016
15
60
14
May 2016
6
54
9
Jun 2016
2
61
6
Jul 2016
6
50
5
Aug 2016
6
37
6
Sep 2016
4
39
3
Oct 2016
4
43
10
Nov 2016
15
65
7
Dec 2016
16
35
6
Jan 2017
8
35
5
Feb 2017
4
42
2
Mar 2017
5
39
13
Apr 2017
7
44
8
May 2017
3
58
16
Jun 2017
12
30
4
Jul 2017
17
17
2
Aug 2017
37
25
2
Sep 2017
44
32
3
Oct 2017
66
57
8
Nov 2017
52
44
4
Dec 2017
54
44
6
Jan 2018
51
45
5
Feb 2018
42
33
4
Mar 2018
70
59
12
Apr 2018
94
92
12
May 2018
66
66
6
Jun 2018
64
64
7
Jul 2018
65
65
10
Aug 2018
99
97
8
Sep 2018
162
162
43
Oct 2018
177
177
16
Nov 2018
186
186
14
Dec 2018
111
111
10
Jan 2019
98
98
15
Feb 2019
96
95
5
Mar 2019
145
145
14
Apr 2019
80
80
15
May 2019
121
121
23
Jun 2019
94
94
17
Jul 2019
138
134
18
Aug 2019
109
109
23
Sep 2019
153
149
9
Oct 2019
196
195
13
Nov 2019
109
109
14
Dec 2019
110
106
15
Jan 2020
79
79
14
Feb 2020
89
89
5
Mar 2020
84
82
9
Apr 2020
102
102
17
May 2020
118
118
20
Jun 2020
73
73
5
Jul 2020
78
77
10
Aug 2020
49
49
9
Sep 2020
63
63
11
Oct 2020
125
119
19
Nov 2020
131
132
17
Dec 2020
197
197
29
Jan 2021
177
177
20
Feb 2021
172
172
32
Mar 2021
107
105
9
Apr 2021
114
114
8
May 2021
90
86
24
Jun 2021
66
68
7
Jul 2021
81
81
9
Aug 2021
89
88
46
Sep 2021
96
98
18
Oct 2021
147
148
40
Nov 2021
150
149
28
Dec 2021
69
69
12
Jan 2022
89
94
16
Feb 2022
89
90
6
Mar 2022
105
109
13
Apr 2022
156
164
17
May 2022
71
74
26
Jun 2022
54
52
23
Jul 2022
282
280
6
Aug 2022
69
67
21
Sep 2022
87
86
19
Oct 2022
90
89
16
Nov 2022
108
115
16
Dec 2022
56
54
14
Jan 2023
47
48
10
Feb 2023
77
73
5
Mar 2023
66
62
14
Apr 2023
77
82
24
May 2023
94
95
52
Jun 2023
105
101
22
Jul 2023
85
85
8
Aug 2023
59
59
12
Sep 2023
70
67
17
Oct 2023
74
77
24
Nov 2023
123
125
13
Dec 2023
213
20
5
Jan 2024
48
0
0
Feb 2024
71
1
1
Mar 2024
169
1
0
Apr 2024
180
1
0
May 2024
96
3
8
Jun 2024
78
2
0
Jul 2024
57
1
1
Aug 2024
91
3
4
Sep 2024
63
1
2
Total
12634
17872
3415
Read the full text or download the PDF:
Subscribe
Log in
Log in via Institution
Log in via OpenAthens
Log in via RCEM
Log in using your username and password
For personal accounts OR managers of institutional accounts
Username
*
Password
*
Forgot your log in details?
Register a new account?
Forgot
your user name or password?
PDF