WebThere are a number of different t -tests, the most common being single sample t -test, independent t -test and dependent t -test. The basic format for reporting the result of a t … WebNov 2, 2015 · If you have a total number of samples N and a proportion p of them are in the experiment group then n E = N p and N C = N ( 1 − p). The variance is σ 2 ( 1 N p + 1 N ( 1 − p)) = σ 2 N ( 1 p + 1 ( 1 − p)). You can see by plotting a graph of ( 1 p + 1 ( 1 − p)) that the minimum occurs at p = 0.5, alternatively you can use calculus to ...
Sample Size proportion per control vs. experiment group
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