5. The null hypothesis is that the population coefficient of correlation between the pretest and the final exam is zero. The alternative hypothesis is that the population coefficient of correlation between the pretest and the final exam is significantly different from zero
18. The final column gives the significance of the F ratio. This is the p value. If the p value is less than or equal your α level, then you can reject H 0 that all the means are equal. In this example, the p value is .511 which is greater than the α level, so we fail to reject H 0 . That is, there is insufficient evidence to claim that some of the means be different.