The technology underlying hip replacements has changed as these operations have become more popular (over 250,000 in the United States in2008). Starting in 2003, highly durable ceramic hips were marketed. Unfortunately, for too many patients the increased durability has beencounterbalanced by an increased incidence of squeaking. An article reported that in one study of 146 individuals who received ceramic hips between2003 and 2005, 11 of the hips developed squeaking.(a) Calculate a lower confidence bound at the 95% confidence level for the true proportion of such hips that develop squeaking. (Round youranswer to three decimal places.)0.0019(b) Interpret the 95% confidence level used in (a).We are 95% confident that the true proportion of all such artificial hip recipients who experience squeaking is less than the lowerbound.We are 95% confident that the true proportion of all such artificial hip recipients who experience squeaking is greater than thelower bound.You may need to use the appropriate table in the Appendix of Tables to answer this question.

Given that: Number of successes, x=11 Sample size, n=146

Answered: The technology underlying hip…

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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