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Testing the null hypothesis that head position does not impact spray particle deposition beyond the anterior region of the nose (Hypothesis #3). The different head positions were compared using analysis of variance (ANOVA).
| Airflow | Side | P-value |
|---|---|---|
| Present | Left (Affected) | 0.97963 |
| Right | 0.81635 | |
| Absent | Left (Affected) | <0.00001 |
| Right | <0.00001 |
P-value<0.05 indicate statistical significance (all cases).
