Facts About the F Distribution · Exercise 22

lists the number of pages in four different types of magazines.
$$\begin{array}{cccc}\text{Home Decorating}& \text{News}& \text{Health}& \text{Computer}\\ \text{172}& \text{87}& \text{82}& \text{104}\\ \text{286}& \text{94}& \text{153}& \text{136}\\ \text{163}& \text{123}& \text{87}& \text{98}\\ \text{205}& \text{106}& \text{103}& \text{207}\\ \text{197}& \text{101}& \text{96}& \text{146}\end{array}$$

Using a significance level of 5 percent, test the hypothesis that the four magazine types have the same mean length.

Its source prints no answer for this problem, so there's nothing to check against.

OpenStax, Statistics · §13.3 Facts About the F Distribution · Exercise 22