A New York Times article reported that a survey conducted in 2014 included 36,000 adults, with 3.69% of them being regular users of e-cigarettes. Because e-cigarette use is relatively new, there is a need to obtain today's usage rate. How many adults must be surveyed now if a confidence level of 95% and a margin of error of 2.5 percentage points are wanted? a. Assume that nothing is known about the rate of e-cigarette usage among adults.
A New York Times article reported that a survey conducted in 2014 included 36,000 adults, with 3.69% of them being regular users of e-cigarettes. Because e-cigarette use is relatively new, there is a need to obtain today's usage rate. How many adults must be surveyed now if a confidence level of 95% and a margin of error of 2.5 percentage points are wanted? a. Assume that nothing is known about the rate of e-cigarette usage among adults.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 8SGR
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A New York Times article reported that a survey conducted in 2014 included 36,000 adults, with 3.69% of them being regular users of e-cigarettes. Because e-cigarette use is relatively new, there is a need to obtain today's usage rate. How many adults must be surveyed now if a confidence level of 95% and a margin of error of 2.5 percentage points are wanted?
a. Assume that nothing is known about the rate of e-cigarette usage among adults.
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