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Old 01-27-2010, 05:32 PM  
Libertine
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Join Date: May 2002
Posts: 17,860
Quote:
Originally Posted by Myst View Post
Code:
Jan 01-20	18529	3410	18.40%	$5,195.80 
21-Jan		1472	254	17.26%	$406.40 
22-Jan		1557	283	18.18%	$452.80 
23-Jan		2475	463	18.71%	$740.80 
24-Jan		3852	674	17.50%	$1,078.40 
25-Jan		3838	698	18.19%	$1,116.80 
26-Jan		1691	178	10.53%	$329.30 
27-Jan		1176	113	9.61%	$209.05
Here are my stats for an unnamed program. What is key is here how the conversion ratios have dropped so significantly the last two days (we are talking about the 3rd column not the first). Does anyone know how to use statistics to compare how I was doing from Jan1-25 to my ratios the last two days and see if the conversion rations Im getting could be possibly due to random chance?
A simple chi-squared test should suffice to get your answer, although you have to keep in mind that things like day of the week might be a confounder here.
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