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To compute the necessary sample size for an interval estimate of a population proportion, all of the following procedures are recommended when p is unknown except :____________

a. use the sample proportion from a previous study.
b. use the sample proportion from a preliminary sample.
c. use 1.0 as an estimate.
d. use judgment or a best guess.

Respuesta :

I think the answer is A

Answer:

c- use 1.0 as an estimate

Step-by-step explanation:

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