12.14 Calculating the ANOVA F test P-value. For each of the following situations, find the degrees of freedom for the F statistic and then use Table E to approximate the P-value.
(a) Six groups are being compared with five observations per group. The value of the F statistic is 2.47.
(b) Four groups are being compared with 11 observations per group. The value of the F statistic is 5.03.
(c) Five groups are being compared using 65 total observations. The value of the F statistic is 3.11.