F Test Statistika. These are given by h0 null hypothesis. Fisher termed this formula as f test formula.
To perform an f test first we have to define the null hypothesis and alternative hypothesis. The f test compares what is called the mean sum of squares for the residuals of the model and and the overall mean of the data. For doing the test we calculate f statistic is defined as.
Reject the null when your p value is smaller than your alpha level.
Df 1 n 1 1 11 1 10 df 2 n 2 1 21 1 20. An f test is any statistical test in which the test statistic has an f distribution under the null hypothesis. It is used to compare statistical models as per the data set provided or available. Variance of 1 st data set variance of 2 nd data set for a lower one tailed test.