No preliminary estimate is available. Find the mini- mum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 48% of U.S. adults think that the high price of gasoline is the fault of the current president.
No preliminary estimate is available. Find the mini- mum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 48% of U.S. adults think that the high price of gasoline is the fault of the current president.
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
1. You wish to estimate, with 95% confidence, the percentage of all U.S.
adults who think that the high price of gasoline is the fault of the
current president. Your estimate must be accurate within 2.5% of the
population proportion.
(a) No preliminary estimate is available. Find the mini-
mum
(b) Find the minimum sample size needed, using a prior
study that found that 48% of U.S. adults think that the high price
of gasoline is the fault of the current president.
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