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    <title>Magnolia - Issue tracker</title>
    <link>https://jira.magnolia-cms.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-uk</language>    <build-info>
        <version>9.4.2</version>
        <build-number>940002</build-number>
        <build-date>19-01-2023</build-date>
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<item>
            <title>[ABTEST-427] DOC: Write a summary of the Statistical Engine approach</title>
                <link>https://jira.magnolia-cms.com/browse/ABTEST-427</link>
                <project id="16583" key="ABTEST">A/B Testing</project>
                    <description>&lt;p&gt;The Statistical Engine is a fundamental mechanism of the success of the ABn Testing. Whilst we do not want to share details of own algorithm, we should provide user with an overview of what approach we&apos;ve taken&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Write one of two paragraphs summarising our statistical engine&lt;/li&gt;
	&lt;li&gt;Pass the overview to docu team for its addition to the existing documentation&#160;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;&lt;em&gt;&lt;ins&gt;Useful links&lt;/ins&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Andrei&apos;s write-up &lt;a href=&quot;https://wiki.magnolia-cms.com/display/WIKI/Experimentation+module+%3A+The+main+concept&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://wiki.magnolia-cms.com/display/WIKI/Experimentation+module+%3A+The+main+concept&lt;/a&gt;&#160;&lt;/li&gt;
	&lt;li&gt;Blog &lt;a href=&quot;https://splitmetrics.com/blog/sequential-a-b-testing/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://splitmetrics.com/blog/sequential-a-b-testing/&lt;/a&gt;&#160;&lt;/li&gt;
	&lt;li&gt;Blog &lt;a href=&quot;https://splitmetrics.com/blog/splitmetrics-sequential-ab-testing/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://splitmetrics.com/blog/splitmetrics-sequential-ab-testing/&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;&lt;em&gt;&lt;ins&gt;Draft for docu&lt;/ins&gt;&lt;/em&gt;&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Suggestion. Could be part of the &quot;How results are calculated&quot; section. &lt;a href=&quot;https://jira.magnolia-cms.com/secure/ViewProfile.jspa?name=jlegendre&quot; class=&quot;user-hover&quot; rel=&quot;jlegendre&quot;&gt;jlegendre&lt;/a&gt;&#160; text in italics is the suggested addition to the section
	&lt;ul&gt;
		&lt;li&gt;Alternatively, the additional information would also sit well with the information/screenshot of the set-up tab (screenshot)&lt;/li&gt;
		&lt;li&gt;I added sources for internal reference only&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;&lt;em&gt;The Magnolia algorithm is built on the Frequentist approach, which&#160;optimises traffic volumes - even when the traffic is low, conversion rates and may reduce the number of observations required for a successful experiment by 50% or more. Predictions are made using data from the current experiment only.&lt;/em&gt;&#160;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="97189">ABTEST-427</key>
            <summary>DOC: Write a summary of the Statistical Engine approach</summary>
                <type id="3" iconUrl="https://jira.magnolia-cms.com/secure/viewavatar?size=xsmall&amp;avatarId=10898&amp;avatarType=issuetype">Task</type>
                                            <priority id="6" iconUrl="https://jira.magnolia-cms.com/images/icons/priorities/neutral.gif">Neutral</priority>
                        <status id="6" iconUrl="https://jira.magnolia-cms.com/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="1">Fixed</resolution>
                                        <assignee username="jlegendre">Julie Legendre</assignee>
                                    <reporter username="ldelnevo">Laura Delnevo</reporter>
                        <labels>
                    </labels>
                <created>Mon, 22 Mar 2021 14:33:07 +0100</created>
                <updated>Fri, 23 Apr 2021 10:00:41 +0200</updated>
                            <resolved>Tue, 6 Apr 2021 17:49:53 +0200</resolved>
                                                                        <due></due>
                            <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="257170" author="jlegendre" created="Tue, 6 Apr 2021 16:55:49 +0200"  >&lt;p&gt;Thanks for doing all the leg work on this content &lt;a href=&quot;https://jira.magnolia-cms.com/secure/ViewProfile.jspa?name=ldelnevo&quot; class=&quot;user-hover&quot; rel=&quot;ldelnevo&quot;&gt;ldelnevo&lt;/a&gt;. Much appreciated :bow:&lt;/p&gt;</comment>
                            <comment id="259226" author="mduerig" created="Fri, 23 Apr 2021 10:00:41 +0200"  >&lt;p&gt;Here&apos;s some links to how competitors document their approaches:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;VWO: &lt;a href=&quot;https://cdn2.hubspot.net/hubfs/310840/VWO_SmartStats_technical_whitepaper.pdf&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://cdn2.hubspot.net/hubfs/310840/VWO_SmartStats_technical_whitepaper.pdf&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;Optimizely: &lt;a href=&quot;http://pages.optimizely.com/rs/optimizely/images/stats_engine_technical_paper.pdf&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://pages.optimizely.com/rs/optimizely/images/stats_engine_technical_paper.pdf&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
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                            <attachment id="77963" name="Screenshot 2021-03-29 at 19.38.09.png" size="100086" author="ldelnevo" created="Mon, 29 Mar 2021 19:39:30 +0200"/>
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