"Introduction to statistics to help us understand fluctuating conversion rates better" was posted by Marianina Manning and received 4 commented
Hugh Gage said,         
July 13 2007

Hi Marianna,
Great post!
Looking at the second of your trend charts I would almost be more interested in the step change around the 3rd April which sits within your standard deviation than some of the peaks and troughs that breach your standard deviation lines. Does that seem reasonable to you?

Cheers, Hugh

Marianina Chaplin said,         
July 16 2007

Hugh, Thanks so much for commenting. And yes good point in that looking at the chart from an overall web analyst point of view the step up around 3 April is more significant than the peaks and troughs. This is my beginners guide to statistics to illustrate how easy it is use statistical calculations in excel. From 3 April for example – there is a step up so the higher results would have been the result of a marketing campaign/site change etc :) And that was the title of my post “understanding fluctuating conversion rates” so hands up. No more blogging at midnight may be the answer.

Anil said,         
August 13 2007

Marianina

Amazing post, i was just looking for this kind of information, Very informative thanks:)

Anil

shawn said,         
December 29 2007

Hmm… Those dips are weekends. I don’t think you can track website usage in smaller than weekly averages. Thoughts?

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Introduction

With web analytics, we can transform the way we see and act on our marketing performance to make it, our site and conversion rates better. My blog shares my experiences on how to get good insights and put them into action.

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