A drug manufacturer wants to estimate the meanheart rate for patients with a certain heart condition. Because the condition is rare, the manufacturer can only find 18 people with the condition currently untreated. From this small sample, the mean heart rate is 93 beats per minute with a standard deviationof 6.
(a) Find a 98% confidence intervalfor the true mean heart rate of all people with this untreated condition. Show your calculations and/or explain the process used to obtain the interval.
(b) Interpret this confidence interval and write a sentence that explains it
This solution is comprised of detailed step-by-step calculations and analysis of the given problem and provides students with a clear perspective of the underlying concept.