In a survey of 3048 adults aged 57 through 85​ years, it was found that 80.3​% of them used at least one prescription medication. Complete parts​ (a) through​ (c) below. a. How many of the 3048 subjects used at least one prescription​ medication?   nothing ​(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.   nothing​%

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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In a survey of
3048
adults aged 57 through 85​ years, it was found that
80.3​%
of them used at least one prescription medication. Complete parts​ (a) through​ (c) below.
a. How many of the
3048
subjects used at least one prescription​ medication?
 
nothing
​(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.
 
nothing​%<p<nothing​%
​(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?
 
 
A.
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).
 
B.
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).
 
C.
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).
 
D.
The results tell us nothing about the proportion of college students who use at least one prescription medication.
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