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 3percentagepoints are wanted? Complete parts (a) through (c) below. Question content area bottom Part 1 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? A. Yes, using the result from the 2014 survey only slightly increases the sample size. B. Yes, using the result from the 2014 survey dramatically reduces the sample size. C. No, using the result from the 2014 survey does not change the sample size. D. No, using the result from the 2014 survey only slightly reduces the sample size.
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 3percentagepoints are wanted? Complete parts (a) through (c) below. Question content area bottom Part 1 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? A. Yes, using the result from the 2014 survey only slightly increases the sample size. B. Yes, using the result from the 2014 survey dramatically reduces the sample size. C. No, using the result from the 2014 survey does not change the sample size. D. No, using the result from the 2014 survey only slightly reduces the sample size.
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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Question
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
3percentagepoints are wanted? Complete parts (a) through (c) below.
Question content area bottom
Part 1
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?
Yes, using the result from the 2014 survey only slightly increases the sample size .
Yes, using the result from the 2014 survey dramatically reduces the sample size.
No, using the result from the 2014 survey does not change the sample size.
No, using the result from the 2014 survey only slightly reduces the sample size.
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