Comments on: Excellent Analytics Tip #9: Leverage Statistical Control Limits http://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html Pluralitas non est ponenda sine neccesitate. Fri, 12 Mar 2010 13:58:43 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Getting The Most Out Of Your KPIs | memesponge.comhttp://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html/comment-page-1#comment-491048 Getting The Most Out Of Your KPIs | memesponge.com Mon, 01 Feb 2010 06:00:35 +0000 http://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html#comment-491048 [...] 3) Get to know your KPIs better on all levels to learn what is normal and what is not in terms of their behavior. In this respect, you view your KPIs as predictable subjects. In the same manner as criminal investigators or psychologists observe people and get to know what behavior is normal for a given individual and what is out of the line, you can practice the same with your KPIs to get the most out of your reporting. Avinash Kaushik has a great insight on how to do just that - use the statistical tools of upper and lower controls to define the normal playfield for your data. [...] [...]
3) Get to know your KPIs better on all levels to learn what is normal and what is not in terms of their behavior. In this respect, you view your KPIs as predictable subjects. In the same manner as criminal investigators or psychologists observe people and get to know what behavior is normal for a given individual and what is out of the line, you can practice the same with your KPIs to get the most out of your reporting. Avinash Kaushik has a great insight on how to do just that – use the statistical tools of upper and lower controls to define the normal playfield for your data.
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]]> By: Matt Smedleyhttp://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html/comment-page-1#comment-491007 Matt Smedley Tue, 26 Jan 2010 03:30:38 +0000 http://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html#comment-491007 Great post Avinash! I recently took a stats class as a refresher at my local community college (unfortunately Jack Black didn't show up) and as I was reading through your post I was thinking about "Quartile Ranges" as Wendy Malley mentioned above: LCL: Q1 – 1.5*IQR (IQR stands for Inter Quartile Range, IQR = Q3 – Q1) UCL = Q3 + 1.5*IQRThanks Wendy for the insight on how the IQR relates to UCL & LCL!Thanks Avinash for the great post! Great post Avinash!
I recently took a stats class as a refresher at my local community college (unfortunately Jack Black didn't show up) and as I was reading through your post I was thinking about "Quartile Ranges" as Wendy Malley mentioned above:

LCL: Q1 – 1.5*IQR (IQR stands for Inter Quartile Range, IQR = Q3 – Q1)
UCL = Q3 + 1.5*IQR

Thanks Wendy for the insight on how the IQR relates to UCL & LCL!

Thanks Avinash for the great post!

]]> By: Tan G.http://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html/comment-page-1#comment-490498 Tan G. Sun, 13 Dec 2009 21:42:27 +0000 http://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html#comment-490498 This is a great post. It really helped me in my understanding and translating the application of control limits to everyday business processes. This is a great post. It really helped me in my understanding and translating the application of control limits to everyday business processes.

]]> By: Andrew Blankhttp://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html/comment-page-1#comment-483358 Andrew Blank Mon, 02 Mar 2009 16:10:19 +0000 http://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html#comment-483358 Avinash,Great post. Just an update:The link to Clint's blog post is broken. It is now at http://blog.instantcognition.com/web-analytics/2007/01/18/using-constants-in-excel-charts/Andrew Avinash,

Great post. Just an update:

The link to Clint's blog post is broken. It is now at http://blog.instantcognition.com/web-analytics/2007/01/18/using-constants-in-excel-charts/

Andrew

]]> By: Six Sigma & The Online Marketing Agency | Search Engine Marketing Operational Excellence | Quality In Searchhttp://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html/comment-page-1#comment-477740 Six Sigma & The Online Marketing Agency | Search Engine Marketing Operational Excellence | Quality In Search Sun, 07 Dec 2008 14:54:15 +0000 http://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html#comment-477740 [...] To date I have only come across a few references of Six Sigma principles being applied to online marketing. Avinash & the Eisenberg’s have both written about applying six sigma principles to web analytics and online marketing so even though the chatter for this topic is minimal it comes from a few very influential voices. [...] [...] To date I have only come across a few references of Six Sigma principles being applied to online marketing. Avinash & the Eisenberg’s have both written about applying six sigma principles to web analytics and online marketing so even though the chatter for this topic is minimal it comes from a few very influential voices. [...]

]]> By: Warning bells you can’t afford to ignore - courtesy of Google Insights | Tracking Tourism: The Tourism Research Bloghttp://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html/comment-page-1#comment-477212 Warning bells you can’t afford to ignore - courtesy of Google Insights | Tracking Tourism: The Tourism Research Blog Wed, 03 Dec 2008 13:06:25 +0000 http://www.kaushik.net/avinash/2007/01/excellent-analytics-tip-9-leverage-statistical-control-limits.html#comment-477212 [...] Incidentally, even if we take the figures for Aviemore Highland Resort in isolation, using the raw data (available if you have a Google Account), we can see that the term ‘aviemore highland resort’ is now performing outside of control limits (defined as standard deviation x 3 - see more here about control limits) as shown in the graph below. [...] [...] Incidentally, even if we take the figures for Aviemore Highland Resort in isolation, using the raw data (available if you have a Google Account), we can see that the term ‘aviemore highland resort’ is now performing outside of control limits (defined as standard deviation x 3 – see more here about control limits) as shown in the graph below. [...]

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