In order to test a hypothesis in traditional (“frequentist”) statistics, you posit an alternative called the “null hypothesis”. The null hypothesis should be chosen so as to represent the default ...

Is 90 minutes the mean length of a movie on Netflix? There were 834 movies available on Netflix on Memorial Day, 2020 so finding the mean length of all of them (the parameter value) would be laborious ...

Hypothesis testing is a formal procedure for investigating our ideas about the world using statistics. It is most often used by researchers to test predictions, called hypotheses. The first step in ...