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Nehmer
Old 06-30-2005, 03:05 AM #10 (permalink)  
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Join Date: Oct 2004
Location: Decatur, IL
Posts: 666
Nehmer
Quote:
Originally Posted by TylerK
Quote:
Originally Posted by euphoricism
Definitely change it to 1.96. Thats the z score for .05 (corrosponding to 95% conf)
Though I won't likely understand it, can you tell me why? Or give me some kind of link?
It just means that 95% of the normal distribution is within 1.96 Standard Deviations of the mean. Unless you are doing work for a project where accuracy is extremely important the difference between 2 and 1.96 will be hardly noticable and would just give us like the 95.4% confidence interval(So in our case the 2 is probably fine).
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