A clinical trial is conducted studying the time it takes a certain allergy medication to be...
A clinical trial is conducted studying the time it takes a certain allergy medication to be effective. A sample of patients in the trial report that it takes 23 minutes, on average, for them to feel the effects of the medication. The researchers report that their 99% confidence interval is:
(19.728,26.272)
What is the margin of error?
Round your answer to three decimal places.
Provide your answer below:
Homework Answers
We have 99% confidence interval for population mean is
19.728 < 
< 26.272
Xbar - E = 19.728
Xbar + E = 26.272
Where E is margin of error
Solving these equations
Margin of error = 3.272
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