11 humans. Each was assigned to have a dose of capsaicin injected intradermally. A typical reaction after this injection is that the skin near the injection site is painful to the touch for some period of time. Four subjects received a dose of 100 l and seven subjects received a dose of 25 l.

DoseTime (min.)

25 l32 36 3241 36 32 37

100 l121 114 79151

Perform Levene's test for the equality of variances of the two doses.