d. What is the lower bound of the confidence interval? e. What is the upper bound for the confidence interval? f. In April of 2020, Nick Newscaster claimed that a majority of Americans wanted all restrictions on public activity in response to COVID-19 to be lifted. Based on the confidence interval that you calculated above, was his statement true? Why or why not?
d. What is the lower bound of the confidence interval? e. What is the upper bound for the confidence interval? f. In April of 2020, Nick Newscaster claimed that a majority of Americans wanted all restrictions on public activity in response to COVID-19 to be lifted. Based on the confidence interval that you calculated above, was his statement true? Why or why not?
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
d. What is the lower bound of the confidence interval?
e. What is the upper bound for the confidence interval?
f. In April of 2020, Nick Newscaster claimed that a majority of Americans wanted all
restrictions on public activity in response to COVID-19 to be lifted. Based on the confidence
interval that you calculated above, was his statement true? Why or why not?
Transcribed Image Text:According to a Pew Research study conducted in the second week in April, 66% of a random sample of 4,917 adults expressed concern that restrictions on public activity by state governments in response to the Coronavirus would be lifted too quickly. Calculate a 99% confidence interval for the proportion of adults in the U.S. who were concerned that restrictions would be lifted too quickly, and answer the following questions based on those calculations.
Transcribed Image Text:d. What is the lower bound of the confidence interval?
e. What is the upper bound for the confidence interval?
f. In April of 2020, Nick Newscaster claimed that a majority of Americans wanted all restrictions on public activity in response to COVID-19 to be lifted. Based on the confidence interval that you calculated above, was his statement true? Why or why not?
Expert Solution
Step 1
We have given that
Sample size n=4917
Sample proportion p^=66%=0.66
99% confidence interval
Step by step
Solved in 2 steps with 1 images
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