Dear list,
A client has asked me for help with the following problem:
He has sampled 48 sites on 4 different occasions looking for evidence
of a particular disease. There were 12 sites which didn't show any
signs of disease at all, 16 with 1 occurrence, 7 with 2, 10 with 3 and
3 with disease on all 4 occasions. What he wants to know is there
evidence of consistently positive or negative sites?
Has anyone got any suggestions.
Alan Gordon.
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