Test of Two Variances · Exercise 20

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

Which two magazine types do you think have different variances in length?

This is an open-ended exercise: its source gives no single answer.

OpenStax, Introductory Business Statistics 2e · §12.1 Test of Two Variances · Exercise 20