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Name: n a survey of 3484 adults aged 57 through 85 years, it was found that
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Description: n a survey of 3484 adults aged 57 through 85 years, it was found that 84.7% of them used at least one prescription medication. Complete each of the following. (a) Construct a 90 % confidence interval of the percentage of adults aged 57 through 85

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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n a survey of 3484 adults aged 57 through 85 years, it was found that 84.7% of them used at least one prescription medication. Complete each of the following. (a) Construct a 90 % confidence interval of the percentage of adults aged 57 through 85 years who use at least one prescription medication. {Hint: You may use the Calc function STAT>Tests>1-PropZintvl; MAKE SURE YOU ENTER X AS A WHOLE NUMBER} (b) Find the margin of error. {Hint: Right side of the inequality minus the left side = 2E.}

Answer: CI = Blank 1 % < p < Blank 2 % ; ( to one decimal place). (Note: the "units" are %.)

Answer: The margin of error is: Blank 3 _____________________ % . to 1 dec. places.

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