Mozilla Community Surveys/Completed/SUMO/RQ2

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Homogenous Subsets

How to interpret these tables: Each column contains a set of groups that are not significantly different from each other. Some groups appear in two columns, this means that they are the intersection of two (or more) overlapping sets of groups.



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Mozilla overall
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
de 181 3.83
fr 243 3.88
ru 282 4.11 4.11
hu 90 4.11 4.11
pl 167
4.22
it 148
4.22
Sig.
.052 .838
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 161.978.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.

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Firefox
Tukey HSD
locale_code N Subset for alpha = .05
1 2 3 1
de 211 4.16

fr 271 4.20 4.20
ru 373
4.43 4.43
pl 171
4.45 4.45
it 154

4.47
hu 95

4.58
Sig.
.998 .068 .573
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 176.584.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Thunderbird
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
de 168 3.82
fr 225 3.85
ru 299 4.05 4.05
it 123 4.06 4.06
pl 129 4.06 4.06
hu 77
4.25
Sig.
.313 .574
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 140.811.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Calendar
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
de 84 3.11
fr 114 3.16 3.16
ru 138 3.39 3.39
pl 61 3.56 3.56
it 65 3.63 3.63
hu 40
3.70
Sig.
.088 .069
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 70.837.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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SeaMonkey
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
de 69 3.03
fr 75 3.15
ru 153 3.50 3.50
hu 36 3.53 3.53
pl 61 3.57 3.57
it 51
3.78
Sig.
.128 .776
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 61.136.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Add-ons
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
fr 236 3.42
hu 79 3.61 3.61
de 179 3.77 3.77
ru 310
3.85
pl 147
3.93
it 136
3.96
Sig.
.096 .085
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 150.513.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Most of the relevant support is in my language
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
pl 176 3.69
de 203 3.81 3.81
fr 269 3.84 3.84
hu 94 3.90 3.90
ru 386 3.96 3.96
it 149
4.07
Sig.
.141 .170
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 175.102.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Support in English is sufficient
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
ru 396 1.66
fr 275 1.95 1.95
pl 179
2.04
it 152
2.08
de 209
2.08
hu 96
2.26
Sig.
.119 .083
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 178.952.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Navigation on the support sites is easy
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
pl 177 3.55
de 206 3.57
fr 263 3.66 3.66
ru 383 3.77 3.77
hu 90 3.83 3.83
it 149
3.92
Sig.
.071 .121
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 172.712.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Users ask questions in the right channels
Tukey HSD
locale_code N Subset for alpha = .05
1 1
de 191 3.24
hu 68 3.25
pl 156 3.27
ru 322 3.28
fr 202 3.49
it 112 3.55
Sig.
.053
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 138.452.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Users rarely ask the same question more than once
Tukey HSD
locale_code N Subset for alpha = .05
1 2 3 1
fr 201 2.43

ru 320 2.52

it 113 2.58 2.58
pl 153 2.69 2.69
de 178
2.92
hu 66

3.85
Sig.
.312 .094 1.000
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 135.578.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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The support sites are up-to-date
Tukey HSD
locale_code N Subset for alpha = .05
1 2 3 1
fr 234 3.67

pl 169 3.68 3.68
de 197 3.70 3.70
hu 79 3.77 3.77 3.77
ru 356
3.98 3.98
it 141

4.02
Sig.
.930 .055 .169
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 158.620.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Most common issues are covered well
Tukey HSD
locale_code N Subset for alpha = .05
1 2 3 1
pl 169 3.50

de 197 3.79 3.79
hu 78
3.81 3.81
fr 241
3.82 3.82
ru 366
3.93 3.93
it 135

4.09
Sig.
.069 .712 .073
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 157.469.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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The support sites make use of video
Tukey HSD
locale_code N Subset for alpha = .05
1 2 3 1
ru 263 2.38

de 167 2.71 2.71
fr 194
2.90 2.90
pl 145
2.94 2.94
it 104

3.16
hu 46

3.26
Sig.
.213 .580 .140
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 112.790.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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New issues are quickly addressed
Tukey HSD
locale_code N Subset for alpha = .05
1 2 3 1
de 192 3.57

pl 157 3.59

ru 333 3.75 3.75
fr 231 3.79 3.79 3.79
hu 71
4.01 4.01
it 126

4.07
Sig.
.377 .175 .125
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 146.589.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Tutorials / How-tos
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
de 228 3.61
pl 187 3.76 3.76
ru 406 3.87 3.87
fr 283
4.02
it 158
4.04
hu 101
4.08
Sig.
.209 .087
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 187.733.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.



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Troubleshooting articles
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
hu 101 3.90
fr 283 3.99 3.99
pl 187 4.01 4.01
de 228 4.07 4.07
it 158
4.22
ru 406
4.26
Sig.
.500 .076
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 187.733.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Availibility from a single site
Tukey HSD
locale_code N Subset for alpha = .05
1 2 3 1
de 228 3.47

fr 283 3.80 3.80
it 158
3.82
hu 101
4.00 4.00
ru 406
4.10 4.10
pl 187

4.17
Sig.
.063 .094 .680
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 187.733.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Screenshots
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
ru 406 3.42
hu 101 3.46
it 158 3.54 3.54
de 228 3.75 3.75
pl 187
3.81
fr 283
3.85
Sig.
.057 .087
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 187.733.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Screencasts / videos
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
ru 406 2.64
it 158
3.07
de 228
3.10
hu 101
3.28
fr 283
3.31
pl 187
3.43
Sig.
1.000 .076
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 187.733.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.



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OS specific information
Tukey HSD
locale_code N Subset for alpha = .05
1 2 3 1
ru 406 3.56

de 228 3.61 3.61
pl 187 3.80 3.80 3.80
fr 283 3.83 3.83 3.83
it 158
3.94 3.94
hu 101

4.07
Sig.
.241 .085 .233
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 187.733.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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Forums
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
hu 101 3.62
fr 283 3.70 3.70
pl 187 3.73 3.73
it 158 3.80 3.80
de 228 3.81 3.81
ru 406
3.99
Sig.
.542 .115
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 187.733.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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LiveChat (embedded)
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
ru 406 2.60
it 158 2.65 2.65
fr 283 2.69 2.69
de 228 2.73 2.73
pl 187 2.97 2.97
hu 101
2.99
Sig.
.069 .128
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 187.733.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


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VoIP
Tukey HSD
locale_code N Subset for alpha = .05
1 2 3 4 1
ru 406 2.06


fr 283 2.20 2.20

it 158 2.44 2.44 2.44
de 228
2.46 2.46
pl 187

2.82 2.82
hu 101


2.88
Sig.
.070 .391 .062 .997
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 187.733.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.


IM
Tukey HSD
locale_code N Subset for alpha = .05
1 2 1
de 228 2.64
fr 283 2.69
it 158 2.85
ru 406 2.96 2.96
hu 101 3.01 3.01
pl 187
3.29
Sig.
.114 .185
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 187.733.
b The group sizes are unequal. The harmonic mean of the group sizes is used. Type I error levels are not guaranteed.
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