14. For each of the following three sample sizes, construct the 95% confidence interval for the population proportion. Use a sample proportion of 0.40 throughout. What happens to interval width as sample size increases? Why? P= 0.40 Sample A: N= 100 Sample B: N = 1000 Sample C: N= 10,000
14. For each of the following three sample sizes, construct the 95% confidence interval for the population proportion. Use a sample proportion of 0.40 throughout. What happens to interval width as sample size increases? Why? P= 0.40 Sample A: N= 100 Sample B: N = 1000 Sample C: N= 10,000
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![Answer+
14. For each of the following three sample sizes, construct the 95% confidence interval for the
population proportion. Use a sample proportion of 0.40 throughout. What happens to interval
width as sample size increases? Why?
P = 0.40
Sample A: N= 100
Sample B: N
1000
Sample C: N= 10,000
7.15. PS Two individuals are running for mayor of a large city. You conduct an election survey a week
before the election and find that 51% of the respondents prefer candidate A. Can you predict a
winner? Use the 99% level. (HINT: In a two-candidate race, what percentage of the vote would the
winner need? Does the confidence interval indicate that candidate A has a sure margin of victory?
72°F
409
4.
141
44
Insert
96
4
G.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F80eec60a-2292-4f35-a3c1-3550a260ffce%2Fb0a200c7-45ec-41bd-8283-766fd8a3c413%2Fvggq4jh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Answer+
14. For each of the following three sample sizes, construct the 95% confidence interval for the
population proportion. Use a sample proportion of 0.40 throughout. What happens to interval
width as sample size increases? Why?
P = 0.40
Sample A: N= 100
Sample B: N
1000
Sample C: N= 10,000
7.15. PS Two individuals are running for mayor of a large city. You conduct an election survey a week
before the election and find that 51% of the respondents prefer candidate A. Can you predict a
winner? Use the 99% level. (HINT: In a two-candidate race, what percentage of the vote would the
winner need? Does the confidence interval indicate that candidate A has a sure margin of victory?
72°F
409
4.
141
44
Insert
96
4
G.
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