Hi All,
What is the "best" or "most appropriate" method to compare very small proportions, say for example I have 2 independent proportions 10,560/4,800,000=.0022 and 2,250/900,000=.0025 that I would like to compare.
In this case is the standard Normal approx ok? or are there better methods that handle small proportions better?
Best Regards,
Mary
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