1 Black sea bass (Centropristis striata), whose range is the eastern coast of the United States. 2  Genus Caesioperca. 3  Butterfly perch (Caesioperca lepidoptera), found in the eastern Indian Ocean, and southwest Pacific Ocean including southern Australia and New Zealand. Black sea bass (Centropristis striata), whose range is the eastern coast of the United States. 2  Genus Caesioperca. 3  Butterfly perch (Caesioperca lepidoptera), found in the eastern Indian Ocean, and southwest Pacific Ocean including southern Australia and New Zealand.
The F ratio is drawn from a distribution. If we assume the null hypothesis is true we get one distribution, and if we assume that it is false with various assumptions about effect size, sample size, and so forth we get another distribution. We then do a study and get an F value. When the null hypothesis is false, it is still possible to get an F ratio less than one. The larger the population effect size is (in combination with sample size), the more the F distribution will move to the right, and the less likely we will be to get a value less than one.
The null hypothesis (H 0) is a hypothesis which the researcher tries to disprove, reject or nullify. The 'null' often refers to the common view of something, while the alternative hypothesis is what the researcher really thinks is the cause of a phenomenon. The simplistic definition of the null is as the opposite of the alternative hypothesis, H 1, although the principle is a little more complex than that. The null hypothesis (H 0) is a hypothesis which the researcher tries to disprove, reject or nullify.