Chapter 10, Problem 10.3.12RE

To determine

To find: The critical F-value for a right-tailed test using the level of significance $\alpha =0.05$ and the degrees of freedom $\text{d}\text{.f}{\text{.}}_{\text{N}}=20$ and $\text{d}\text{.f}{\text{.}}_{\text{D}}=25$.