Mathematics, 07.08.2019 00:10 aroland1990x

"a survey reports the percentage of people 18 years of age and older who smoke. suppose that a study designed to collect new data on smokers an dnonsmokers uses a preliminary estimate of the proportion that smoke of 0.3. how large a sample should be taken to know with 95% confidence the proportion of smokers within a 0.02 true population proportion"

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