Mathematics, 20.04.2021 18:40 elf55
The Centers for Disease Control reported the percentage of people 18 years of age and older who smoke. Suppose that a study designed to collect new data on smokers and nonsmokers uses a preliminary estimate of the proportion who smoke of .19. How large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of .04 (rounded up to the next whole number)? Use 97% confidence.
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