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1) A retailer claims that 90% of its customers are pleased or very pleased with the customer service. In a survey of 300 customers taken last week, what is the probability that 92% or more will be pleased or very pleased with the service? 2) A marketing survey was conducted to estimate the proportion of homemakers who would recognize the brand name of a cleanser based on the shape and the color of the container. Of the 1,400 homemakers sampled, 420 were able to identify the brand by name.

1) A retailer claims that 90% of its customers are pleased or very pleased with the customer service. In a survey of 300 customers taken last week, what is the probability that 92% or more will be pleased or very pleased with the service? 2) A marketing survey was conducted to estimate the proportion of homemakers who would recognize the brand name of a cleanser based on the shape and the color of the container. Of the 1,400 homemakers sampled, 420 were able to identify the brand by name.

MATLAB: An Introduction with Applications
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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1) A retailer claims that 90% of its customers are pleased or very pleased with the customer service. In a survey of 300 customers taken last week, what is the probability that 92% or more will be pleased or very pleased with the service?

2) A marketing survey was conducted to estimate the proportion of homemakers who would recognize the brand name of a cleanser based on the shape and the color of the container. Of the 1,400 homemakers sampled, 420 were able to identify the brand by name. What is the probability that less than 28% of the homemakers would recognize the brand name of the cleanser based on the shape and the color of the container?.

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