Statistics

Observed value

Expected value

Variance

z value

p-value

U3

1.3056

0.762194

0.117405

1.58593

0.0564

WU3

6.56955

4.11497

1.09492

2.34578

0.0095

Breslow-Day

25.7844

0.0785

Zelen exact

0.0292015

0.0292