I have to decide whether two groups have the same variance or not. My sample size is less then impressive, 13 data points per group. I ran Bartletts test and got a p-value of 0.09 - but I suspected that the relatively high value might be due to the small sample size.

So, I ran a bootstrap - sampled with replacement 15 points per group and ran the Bartlett test 100 times. I get a p value that is lower then 0.05 in 50% of the runs.

Could I conclude that probably there is a systematic difference between the two groups?

regards