Mathematics, 18.11.2019 18:31 briiannamb
The american heart association is about to conduct an anti-smoking campaign and wants to know the fraction of americans over 47 who smoke. step 1 of 2: suppose a sample of 861 americans over 47 is drawn. of these people, 577 don't smoke. using the data, estimate the proportion of americans over 47 who smoke. enter your answer as a fraction or a decimal number rounded to three decimal places.
step 2 of 2: suppose a sample of 861 americans over 47 is drawn. of these people, 577 don't smoke. using the data, construct the
80% confidence interval for the population proportion of americans over 47 who smoke. round your answers to three decimal places.
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