adults, 45% indicated that movies were getting better whereas 43% indicated that movies were getting worse. (a) Find a 98% confidence interval for p, the overall proportion of adults who say that movies are getting better. (b) Does the interval include the value p=0.50? Do you think that a majority of adults say that movies
adults, 45% indicated that movies were getting better whereas 43% indicated that movies were getting worse. (a) Find a 98% confidence interval for p, the overall proportion of adults who say that movies are getting better. (b) Does the interval include the value p=0.50? Do you think that a majority of adults say that movies
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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In poll of n=800 randomly chosen adults, 45% indicated that movies were getting better whereas 43% indicated that movies were getting worse.
(a) Find a 98% confidence interval for p, the overall proportion of adults who say that movies are
getting better.
(b) Does the interval include the value p=0.50? Do you think that a majority of adults say that movies
are getting better?
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