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asambeis [7]
3 years ago
15

A medical researcher wants to determine the percentage of females who take vitamins. He wishes to be 99% confident the estimate

is within 2% points of the true proportion. A recent study of 180 females showed that 25% took vitamins.
A) how large should the sample size be?

B) if no estimate of the sample proportion is available how large should the sample be?
Mathematics
1 answer:
12345 [234]3 years ago
8 0
B. i think is the answer
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