Quality Progress, February 2005, reports on improvements in customer satisfaction and loyalty made by Bank of America. A keymeasure of customer satisfaction is the response (on a scale from 1 to 10) to the question: "Considering all the business you do withBank of America, what is your overall satisfaction with Bank of America?" Here, a response of 9 or 10 represents "customer delight."Suppose that the survey selected 300 customers. Assume that 51% of Bank of America customers would currently express customerdelight. That is, assume p = .51.(a) Find the probability that the sample proportion obtained from the sample of 300 Bank of America customers would be within threepercentage points of the population proportion.That is, find P(.48 <<.54). (Round your answer to 4 decimal places. Do not round intermediate values. Round z-value to 2decimal places.)P(0.48 ≤ (p-hat) ≤ 0.54)(b) Find the probability that the sample proportion obtained from the sample of 300 Bank of America customers would be within sixpercentage points of the population proportion.That is, find P(.45 < <.57). (Round your answer to 4 decimal places. Do not round intermediate values. Round z-value to 2decimal places.)P(0.45 s (p-hat) ≤ 0.57)

Answered: Image /qna-images/answer/3cceca7c-d5ae-403a-bfab-0a976cb79883.jpg

Answered: Quality Progress, February 2005,…

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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Sample # 1 and has been provided in the second screenshot (hand written)
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