Table 4 Homogeneity of variance and normality of study variables.

From: Simple and rapid determination of tartrazine in fake saffron using the metal organic framework (Fe SA MOF@CNF) by HPLC/PDA

 

pH

Sorbent mass

Contact time

Tartrazine concentration

Normality (Shapiro–Wilk)

 w

0.88

0.92

0.90

0.89

 p-Value

0.17

0.44

0.22

0.25

Homogeneity of variances (Bartlett)

 Chi-squared

2.62

 p-Value

0.62

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