January 2017
Beginner to intermediate
280 pages
217h 11m
English
The F distribution is a continuous probability distribution that is helpful in testing hypotheses about variances. The F distribution will be used in Chapter 4 when regression models are tested for significance. Figure 2.14 provides a graph of the F distribution. As with a graph for any continuous distribution, the area underneath the curve represents probability. Note that for a large value of F, the probability is very small.
The F statistic is the ratio of two sample variances from independent normal distributions. Every F distribution has two sets of ...