Table 6.
Results from a Two-sample Kolmogorov-Smirnov test for all Type II clusters comparing the metallicities of their P3 stars with that of all the other stars.
| Cluster | D | Dcrit | p-value |
|---|---|---|---|
| NGC 362 | 0.435 | 0.050 | 0.00032 |
| NGC 1851 | 0.403 | 0.005 | 3.1 × 10−15 |
| NGC 5286 | 0.534 | 0.011 | 2.1 × 10−15 |
| NGC 6388 | 0.340 | 0.003 | 1.2 × 10−37 |
| NGC 6656 | 0.615 | 0.013 | 1.3 × 10−15 |
| NGC 7089 | 0.162 | 0.008 | 0.0018 |
Notes. D denotes the result of the Two-sample KS test. 
is the critical value (with sample sizes n and m) for α = 0.1 and c(α) = 1.073. Finally, the last column gives the two-tailed p-value.
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