Mathematics, 27.11.2020 01:30 blueboy58
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 40 who smoke.
a. Suppose a sample of 1089 Americans over 40 is drawn. Of these people, 806 don't smoke. Using the data, estimate the proportion of Americans over 40 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places.
b. 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.
Answers: 3
Mathematics, 21.06.2019 18:30
Complex numbers multiply β-4 * β-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).
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Mathematics, 21.06.2019 23:30
Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 46, 19, 38, 27, 12, 38, 51 minimum maximum median upper quartile lower quartile
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Mathematics, 22.06.2019 00:30
Tim tradesman pays $2,000 annually for $125,000 worth of life insurance. what is the cash value of the policy after 10 years? 11,125 13,125 17,800 111,250
Answers: 2
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fr...
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