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 August 5th, 2013, 04:19 PM #1 Senior Member   Joined: Jan 2013 Posts: 113 Thanks: 0 Sufficient Sample Size for Binomial Distribution Hey guys, I was just wondering how I should go about calculating the minimum sample size required to achieve a fairly strong significance in my test results. I must admit, my statistics is quite out of touch, and I would *love* a really simplified explanation. Thanks all.
 August 6th, 2013, 12:55 PM #2 Global Moderator   Joined: May 2007 Posts: 6,834 Thanks: 733 Re: Sufficient Sample Size for Binomial Distribution For the binomial distribution, ? = ?{p(1-p)/n}, where ? is the standard deviation, n is the sample size, and p is the probability of success. Therefore given p, you choose n based on how good you want your estimate to be.

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