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SAT, 14.04.2020 19:39 christylam1606

In a survey of 3367 adults aged 57 through 85 years, it was found that 82.3% of them used at least one prescription medication. complete parts a and b below.
a. how many of the 3367 subjects used at least one prescription medication?
b. construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication.

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In a survey of 3367 adults aged 57 through 85 years, it was found that 82.3% of them used at least o...
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