At a pre-school 54% of children prefer the colour red over the colour green. From a sample of 80 children: a) Calculate the​ range, centred on the population​ percentage, in which there is a 60​% probability that the sample percentage will be in that range.

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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At a pre-school 54% of children prefer the colour red over the colour green. From a sample of 80 children:

a) Calculate the​ range, centred on the population​ percentage, in which there is a 60​% probability that the sample percentage will be in that range.

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