Chain rule (probability): Difference between revisions
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In May 2009 [[WP:LAYOUT]] conducted two studies.{{Cref2|A}} The first was to determine the proportion of section titles used in the standard appendices of all articles within the English Wikipedia.{{Cref2|B}} The second was to determine the degree of conformity in all articles within the English Wikipedia as defined by [[WP:LAYOUT]].{{Cref2|C}} Below are the results.{{Cref2|D}} | |||
==Study one results== | |||
{| class="wikitable sortable" | |||
! Footer type | |||
! Count | |||
! Proportion | |||
! Error bound{{Cref2|iii|group=1}} | |||
|- | |||
| References || 979 || 48.95% || ±2.19% | |||
|- | |||
| Notes{{Cref2|i|1|group=1}} || 89 || 4.45% || ±1.04% | |||
|- | |||
| Bibliography{{Cref2|i|2|group=1}} || 35 || 1.75% || ±0.57% | |||
|- | |||
| Footnotes || 13 || .65% || ±0.352% | |||
|- | |||
| Sources || 1 || 0.05% || {{Cref2|ii|1|group=1}} | |||
|- | |||
| Works cited || 1 || 0.05% || {{Cref2|ii|2|group=1}} | |||
|- | |||
| Citations || 0 || 0% || {{Cref2|ii|3|group=1}} | |||
|} | |||
{{Cnote2 Begin|liststyle=lower-roman}} | |||
{{Cnote2|i|n=2|group=1|Possible confounding}} | |||
{{Cnote2|ii|n=3|group=1|Sample size too small to calculate reliably}} | |||
{{Cnote2|iii|n=1|group=1|Error bounds are calculated with a 95% confidence interval{{Cref2|E|1}}}} | |||
{{Cnote2 End}} | |||
==Study two results== | |||
===Sections=== | |||
{| class="sortable wikitable" | |||
|+ Blocked: Articles with sections | |||
! Category | |||
! Count | |||
! Proportion | |||
! Error{{Cref2|ii|group=2}} | |||
|- | |||
| Single || 114 || 46.53% || ±6.246% | |||
|- | |||
| Yes || 93 || 37.959% || ±6.0765% | |||
|- | |||
| No || 35 || 14.285% || ±4.3815% | |||
|- | |||
| Maybe || 3 || {{Cref2|i|1|group=2}} || {{Cref2|i|2|group=2}} | |||
|} | |||
{{Cnote2 Begin|liststyle=lower-roman}} | |||
{{Cnote2|i|n=2|group=2|Sample size too small to calculate reliably}} | |||
{{Cnote2|ii|group=2|Error bounds are calculated with a 95% confidence interval{{Cref2|E|2}}}} | |||
{{Cnote2 End}} | |||
===Applicable=== | |||
{| class="sortable wikitable" | |||
|+ Blocked: Applicable by WP:LAYOUT | |||
! Category | |||
! Count | |||
! Proportion | |||
! Error{{Cref2|note 1}} | |||
|- | |||
| Yes || 93 || 70.992% || ±7.77% | |||
|- | |||
| No || 35 || 26.717% || ±7.577% | |||
|- | |||
| Maybe || 3 || {{Cref2|note 2|1}} || {{Cref2|note 2|2}} | |||
|} | |||
{{Cnote2 Begin|liststyle=decimal}} | |||
{{Cnote2|note 1|n=2|Sample size too small to calculate reliably}} | |||
{{Cnote2|note 2|Error bounds are calculated with a 95% confidence interval{{Cref2|E|3}}}} | |||
{{Cnote2 End}} | |||
==Notes== | |||
{{Cnote2 Begin}} | |||
{{Cnote2|A|These are actual results.}} | |||
{{Cnote2|B|{{cite journal|author=[[User:ChyranandChloe|ChyranandChloe]], ''et al.''|date=5 May 2009|title=Standard Appendices Usage Statistics|journal=Journal of Wikipedia Layout|volume=1|issue=1|pages=1-2|publisher=Wikimedia Foundation|location=San Francisco, United States|url=http://en.wikipedia.org/wiki/Wikipedia_talk:Layout/Archive_5#Notes.2C_Footnotes.2C_or_References|language=Spanish|accessdate=2009-09-19}} | |||
}} | |||
{{Cnote2 End}} | |||
At this point the author would like to interrupt this list to indicate a possible application of the value attribute found in [[Template:Cnote2]]. Very long lists similar to this [http://en.wikipedia.org/w/index.php?title=Line_of_succession_to_the_British_throne&oldid=314989630 one] may benefited by having it be broken down. Remember to remove the link to an inline occurrence, giving the feel of an regular list, set n=0. | |||
{{Cnote2 Begin}} | |||
{{Cnote2|C|value=3|{{cite journal|author=[[User:ChyranandChloe|ChyranandChloe]], ''et al.''|date=5 May 2009|title=Standard Appendicies Conformity Statistics|journal=Journal of Wikipedia Layout|volume=1|issue=1|pages=3-4|publisher=Wikimedia Foundation|location=San Francisco, United States|url=http://en.wikipedia.org/wiki/User_talk:WhatamIdoing/Archive_3#WP:LAYOUT|language=Cantonese|accessdate=2009-09-19}} | |||
}} | |||
{{Cnote2|D|2=Null hypothesis tests have been omitted. | |||
{{{!}} class="wikitable" style="margin-left:10px;" | |||
! Assumption | |||
{{!}}- | |||
{{!}} n > 30 | |||
{{!}}- | |||
{{!}} np<sub>0</sub> > 10 | |||
{{!}}- | |||
{{!}} n(1-p<sub>0</sub>) > 10 | |||
{{!}}- | |||
{{!}} Simple Random Sample | |||
{{!}}} | |||
}} | |||
{{Cnote2|E|n=3|Note that [[binomial distribution]]s are discrete, these error bounds assume a [[normal distribution]]. Calculated as <math>\hat p \pm z^* \sqrt{ \frac{\hat p \left ( 1- \hat p \right )}{n}}</math>, distributed as such: [[File:Standard deviation diagram.svg|300px|Normal distribution]]}} | |||
{{Cnote2 End}} |
Revision as of 04:11, 9 April 2013
In May 2009 WP:LAYOUT conducted two studies.Template:Cref2 The first was to determine the proportion of section titles used in the standard appendices of all articles within the English Wikipedia.Template:Cref2 The second was to determine the degree of conformity in all articles within the English Wikipedia as defined by WP:LAYOUT.Template:Cref2 Below are the results.Template:Cref2
Study one results
Footer type | Count | Proportion | Error boundTemplate:Cref2 |
---|---|---|---|
References | 979 | 48.95% | ±2.19% |
NotesTemplate:Cref2 | 89 | 4.45% | ±1.04% |
BibliographyTemplate:Cref2 | 35 | 1.75% | ±0.57% |
Footnotes | 13 | .65% | ±0.352% |
Sources | 1 | 0.05% | Template:Cref2 |
Works cited | 1 | 0.05% | Template:Cref2 |
Citations | 0 | 0% | Template:Cref2 |
Template:Cnote2 Begin Template:Cnote2 Template:Cnote2 Template:Cnote2 Template:Cnote2 End
Study two results
Sections
Category | Count | Proportion | ErrorTemplate:Cref2 |
---|---|---|---|
Single | 114 | 46.53% | ±6.246% |
Yes | 93 | 37.959% | ±6.0765% |
No | 35 | 14.285% | ±4.3815% |
Maybe | 3 | Template:Cref2 | Template:Cref2 |
Template:Cnote2 Begin Template:Cnote2 Template:Cnote2 Template:Cnote2 End
Applicable
Category | Count | Proportion | ErrorTemplate:Cref2 |
---|---|---|---|
Yes | 93 | 70.992% | ±7.77% |
No | 35 | 26.717% | ±7.577% |
Maybe | 3 | Template:Cref2 | Template:Cref2 |
Template:Cnote2 Begin Template:Cnote2 Template:Cnote2 Template:Cnote2 End
Notes
Template:Cnote2 Begin Template:Cnote2 Template:Cnote2 Template:Cnote2 End
At this point the author would like to interrupt this list to indicate a possible application of the value attribute found in Template:Cnote2. Very long lists similar to this one may benefited by having it be broken down. Remember to remove the link to an inline occurrence, giving the feel of an regular list, set n=0.
Template:Cnote2 Begin Template:Cnote2 Template:Cnote2 Template:Cnote2 Template:Cnote2 End