Answered: 3469 adults aged 57 through 85 years,…

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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Question

In a survey of

3469

adults aged 57 through 85 years, it was found that

85.6%

of them used at least one prescription medication. Complete parts (a) through (c) below.

a. How many of the

3469

subjects used at least one prescription medication?

__________

(Round to the nearest integer as needed.)

b. Construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication.

________%<p<_______%

(Round to one decimal place as needed.)

c. What do the results tell us about the proportion of college students who use at least one prescription medication?

The results tell us nothing about the proportion of college students who use at least one prescription medication.

The results tell us that, with 90% confidence, the probability that a college student uses at least one prescription medication is in the interval found in part (b).

The results tell us that, with 90% confidence, the true proportion of college students who use at least one prescription medication is in the interval found in part (b).

The results tell us that there is a 90% probability that the true proportion of college students who use at least one prescription medication is in the interval found in part (b).

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