A Realtor Wishes to Compare the Square Footage of Houses

Essay

A realtor wishes to compare the square footage of houses in 4 different cities, all of which are priced approximately the same. The data are listed below. Use the Kruskal-Wallis test to test the claim that there is no difference in the distribution of the populations. Use α = .05. $$\begin{array} { c c c c } \hline \text { City 1 } & \text { City } 2 & \text { City 3 } & \text { City } 4 \\\hline 2670 & 2300 & 2050 & 2920 \\2500 & 2060 & 2190 & 2870 \\2520 & 2210 & 2100 & 3120 \\2730 & 2170 & 2120 & 2670 \\2420 & 2220 & 2020 & 2520 \\2570 & & 2270 & 2720 \\& & 2170 & 2870 \\& & & 2770 \\\hline\end{array}$$ 14.6 Comparing Three or More Populations: Randomized Block Design 1 Understand the Friedman $F _ { r } \text {-test }$