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Table 3 Statistical parameters calculated after implementation of 2nd full factorial central composite experimental design

From: Optimization of ultrasound-assisted extraction of flavonoid compounds and their pharmaceutical activity from curry leaf (Murraya koenigii L.) using response surface methodology

Regression coefficient R2 R2(adjusted) F-value of model Regression ( P- value) Lack of fit (F-value) Lack of fit ( P-value)
Y1 0.98 0.97 20.13 0.0001 1.77 0.299
Y2 0.97 0.95 19.77 0.0001 1.85 0.289
Y3 0.99 0.99 21.48 0.0001 1.94 0.274
Y4 0.99 0.99 17.21 0.0001 1.61 0.261