TABLE I

Probabilities of a Positive and Negative Sterility Test with Varying Frequencies of Contaminated Units in a Batch (16)

Frequency of Contaminated UnitProbability of a Positive Sterility TestProbability of a Negative Sterility Test
1.0 (100%)1.0 (100%)0
0.1 (10%)0.86 (86%)0.14 (14%)
0.01 (1%)0.18 (18%)0.82 (82%)
0.001 (0.1%)0.02 (2%)0.98 (98%)