A New York Times article reported that a survey conducted in 2014 included 36,000adults, with 3.71% 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 3 percentage points are wanted? Complete parts (a) through (c) below. a. Assume that nothing is known about the rate of e-cigarette usage among adults. n=. (enter your response here ) (Round up to the nearest integer.) Part 2 b. Use the results from the 2014 survey. n=. (enter your response here) (Round up to the nearest integer.)
A New York Times article reported that a survey conducted in 2014 included 36,000adults, with 3.71% 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 3 percentage points are wanted? Complete parts (a) through (c) below. a. Assume that nothing is known about the rate of e-cigarette usage among adults. n=. (enter your response here ) (Round up to the nearest integer.) Part 2 b. Use the results from the 2014 survey. n=. (enter your response here) (Round up to the nearest integer.)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A New York Times article reported that a survey conducted in 2014 included 36,000adults, with 3.71%
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
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
3 percentage points are wanted? Complete parts (a) through (c) below.
a. Assume that nothing is known about the rate of e-cigarette usage among adults.
n=. (enter your response here )
(Round up to the nearest integer.)
Part 2
b. Use the results from the 2014 survey. n=. (enter your response here)
(Round up to the nearest integer.)
Part 3
c. Does the use of the result from the 2014 survey have much of an effect on the sample size?
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A First Course in Probability (10th Edition)ProbabilityISBN:9780134753119Author:Sheldon RossPublisher:PEARSON