This web calculator allows users to specify the number of subjects in the "exposed" and "control" groups with positive and negative outcomes. After providing the data, the calculator will show a table ...

A confidence interval is a statistical concept that shows how likely it is that a range based on a sample of a population contains the mean, or the actual figure, for that data set. It’s useful when a ...

Recently, FDA told a medical device start-up company that, in regard to the company’s proposed clinical trial, “The equivalence of the device to the predicate can be demonstrated if the confidence ...

Third in the series: Nobody becomes a Psych major to study statistics The science of uncertainty. Statistics – much to the regret of many potential psych majors – is the core methodology that links ...

Explain the behaviour of a confidence interval over repeated independent sampling and how this is linked to the interpretation of a confidence interval as "providing a range of values which we are XX% ...