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Table 3 Shapiro-Wilk test for normality for variables in both treatment groups

From: A study of voice quality in obese Egyptian children

Variable Shapiro-Wilk test
p value* Interpretation
Age Control 0.0972 Data are normally distributed
Cases 0.0601 Data are normally distributed
Whole sample 0.0566 Data are normally distributed
FF Control < 0.0001 Data are not normally distributed
Cases 0.0007 Data are not normally distributed
Whole sample 0.0008 Data are not normally distributed
MFF Control 0.0002 Data are not normally distributed
Cases 0.0006 Data are not normally distributed
Whole sample 0.0056 Data are not normally distributed
Jitter Control 0.1142 Data are normally distributed
Cases 0.0003 Data are not normally distributed
Whole sample < 0.0001 Data are not normally distributed
Shimmer Control < 0.0001 Data are not normally distributed
Cases 0.1676 Data are normally distributed
Whole sample < 0.0001 Data are not normally distributed
N/H Control < 0.0001 Data are not normally distributed
Cases < 0.0001 Data are not normally distributed
Whole sample < 0.0001 Data are not normally distributed
  1. *Significance level at p value ≤ 0.01