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Table 3 Test for homogeneity of variance, F test

From: Development and validation by statistical treatment of stability indicating RP-HPLC method for quantification of Orlistat in Orlistat-loaded solid dispersion

Concentration (ng/ml) Responses Variance (s2) F = S22/S12
1000 87,674 25,032,694.67 71.69
91,545
99,686
97,468
98,564
90,237
10,000 24,63,652 1,794,832,656
24,56,843
25,46,753
24,73,896
24,39,569
25,26,547
  1. Fcritical value is greater than Fstatistic value, therefore responses are heteroscedastic