This article provides a way to determine adequate sample size for the confidence interval of covariate-adjusted mean difference in randomized experiments. The ...
It is counterintuitive that, with a sample of only one value from a normal distribution, one can construct a finite confidence interval of any size for the mean. It goes just as much against standard ...
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Excel Time Study Template - Download Link
Excel template that automatically logs timed values, calculates a 95% confidence interval around your average, and the number of samples required to achieve a desired confidence interval.
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