F Test Example Problems With Solutions. Snedecor in honour of sir ronald a. With a two tailed f test you just want to know if the variances are not equal to each other.
Df 1 n 1 1 11 1 10 df 2 n 2 1 51 1 50. Fisher termed this formula as f test formula. Variance 65 99 sample size 21.
On the other hand if the calculated value of f is less than the table value the null hypothesis is accepted and concludes that both the samples illustrate the applications of f test.
Figure 6 2 interactive excel template for f test see appendix 6. An example depicting the above case in which the f test is applied is for example if two sets of pumpkins are grown under two different experimental conditions. Using the interactive excel template in figure 6 2 and remembering to use the α 025 table because the table is one tail and the test is two tail she finds that the critical f for 10 8 df is 4 30. On the other hand if the calculated value of f is less than the table value the null hypothesis is accepted and concludes that both the samples illustrate the applications of f test.
