Table 4.
Figure 16 Comparisons for Hydroquinone and Vitamin E Differences by T-Tests with Unequal Variances
| Time (Hours) | t Stat | P value |
|---|---|---|
| 0.5 | 2.78 | .05 |
| 1 | 5.32 | .001 |
| 1.5 | 5.58 | .001 |
| 2.5 | 7.91 | .0001 |
| 4.5 | 6.06 | .0001 |
| 23 | 14 | .00001 |
| 50 | 14.5 | .00001 |
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