A medical researcher wishes to determine the percentage of females who take vitamins. He wishes to be

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A medical researcher wishes to determine the percentage of females who take vitamins. He wishes to be 99% confident that the estimate is within 2% percentage points of the true proportion. A recent study of 180 females showed that 25% look vitamins.

a.) How large should the sample size be? AND

b.) If no estimate of the sample proportion is available, how large should the sample be?

Related Book For answer-question

Elementary Statistics A step by step approach

ISBN: 978-0073386102

8th edition

Authors: Allan Bluman

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Posted Date: Aug 30, 2018 07:47 AM

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A medical researcher wishes to determine the percentage of females who take vitamins. He wishes to be

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a 001 Z0005258 E 002 p025 n180 ... View the full answer

Elementary Statistics A step by step approach

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