Fig 2. Pearson’s residuals (values are displayed in white on top of bars) for the Chi-Square test between group category and the absence/presence of measurable hearing threshold at 16 kHz.

Values that are higher than 2.0 indicate that the number of cases in that cell is significantly larger than would be expected if the null hypothesis were true. Values that are less than 2.0 indicate that the number of cases in that cell is significantly smaller than would be expected if the null hypothesis were true. Y-axis represents the number of subjects in each category.