6X01:13:24eBookQuality Progress, February 2005, reports on improvements in customer satisfaction andloyalty made by Bank of America. A key measure of customer satisfaction is theresponse (on a scale from 1 to 10) to the question: "Considering all the business you dowith Bank of America, what is your overall satisfaction with Bank of America?" Here, aresponse of 9 or 10 represents "customer delight." Suppose that the survey selected 480customers. Assume that 45% of Bank of America customers would currently expresscustomer delight. That is, assume p = .45.(a) Find the probability that the sample proportion obtained from the sample of 480 Bankof America customers would be within three percentage points of the populationproportion.That is, find P(.42 ≤ § ≤ .48). (Round your answer to 4 decimal places. Do not roundintermediate values. Round z-value to 2 decimal places.)P(.42 ≤ ≤.48)

6. The sample size is 480 and proportion is 0.45.

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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