Answered: Out of a survey of 400 customers, under…

Out of a survey of 400 customers, under the assumption that 0.5 is the correct proportion, what is the probability that at least 181 people would be happy?

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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Out of a survey of 400 customers, under the assumption that 0.5 is the correct proportion, what is the probability that at least 181 people would be happy?

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From the provided information,

Sample size (n) = 400

Proportion (p) = 0.5

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