The Centers for Disease Control reported the percentage of people 18 years of age andolder who smoke (CDC website, December 14, 2014). Suppose that a study designed tocollect new data on smokers and nonsmokers uses a preliminary estimate of the proportionwho smoke of .30.a. How large a sample should be taken to estimate the proportion of smokers in the population with a margin of error of .02? Use 95% confidence.

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.