<P> An F - test is any statistical test in which the test statistic has an F - distribution under the null hypothesis . It is most often used when comparing statistical models that have been fitted to a data set , in order to identify the model that best fits the population from which the data were sampled . Exact `` F - tests '' mainly arise when the models have been fitted to the data using least squares . The name was coined by George W. Snedecor , in honour of Sir Ronald A. Fisher . Fisher initially developed the statistic as the variance ratio in the 1920s . </P>
<P> An F - test is any statistical test in which the test statistic has an F - distribution under the null hypothesis . It is most often used when comparing statistical models that have been fitted to a data set , in order to identify the model that best fits the population from which the data were sampled . Exact `` F - tests '' mainly arise when the models have been fitted to the data using least squares . The name was coined by George W. Snedecor , in honour of Sir Ronald A. Fisher . Fisher initially developed the statistic as the variance ratio in the 1920s . </P>
when do we use f test in statistics
when do we use f test in statistics
most often used when comparing statistical models that have been fitted to a data set , in order to identify the model that best fits the population from which the data were sampled
most often used when comparing statistical models that have been fitted to a data set , in order to identify the model that best fits the population from which the data were sampled