F Test Statistics. This is why the f test is useful since it is a formal statistical test. An f test snedecor and cochran 1983 is used to test if the variances of two populations are equal.
F test is a statistical test which helps us in finding whether two population sets which have a normal distribution of their data points have the same standard deviation or variances. For more complex models the f statisticdetermines if a whole model is statistically different from the mean. Calculate the f value.
General steps for an f test state the null hypothesis and the alternate hypothesis.
Df 1 n 1 1 11 1 10. This test can be a two tailed test or a one tailed test. The f statistic is simply a ratio of two variances. The f value is calculated using the formula f sse 1 sse 2 m sse 2 n k where sse.
