Mathematics, 30.06.2020 02:01 tyrique86
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 46 who smoke.
Step 1 of 2: Suppose a sample of 2172 Americans over 46 is drawn. Of these people, 1738 don't smoke. Using the data, estimate the proportion of Americans over 46 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places.
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 46 who smoke.
Step 2 of 2: Suppose a sample of 2172 Americans over 46 is drawn. Of these people, 1738 don't smoke. Using the data, construct the 98 % confidence interval for the population proportion of Americans over 46 who smoke. Round your answers to three decimal places
Answers: 2
= .8002, or .800 rounded to three decimal places.
. Plugging in the numbers you get 
= .009. 
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