I'm testing the Homogeneity of Variances with Fligner-Killeen test using the function fligner.test in stats
On the chart below I have plotted the residuals that pass this test
(p-value > 0.1)
Someone could tell how is it possible that these residuals pass FK test while having a significant movement around the center of the plot?
I'm testing two groups:
A -> res[1:375]
B -> res[376:750]
The residuals are 750, so I'm comparing the two halves.