Safe food Some food retailers propose subjecting foodto a low level of radiation in order to improve safety, butsale of such “irradiated” food is opposed by many people.Suppose a grocer wants to find out what his customersthink. He has cashiers distribute surveys at checkout andask customers to fill them out and drop them in a box nearthe front door. He gets responses from 122 customers, ofwhom 78 oppose the radiation treatments. What can thegrocer conclude about the opinions of all his customers?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Safe food Some food retailers propose subjecting food
to a low level of radiation in order to improve safety, but
sale of such “irradiated” food is opposed by many people.
Suppose a grocer wants to find out what his customers
think. He has cashiers distribute surveys at checkout and
ask customers to fill them out and drop them in a box near
the front door. He gets responses from 122 customers, of
whom 78 oppose the radiation treatments. What can the
grocer conclude about the opinions of all his customers?

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