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A medical researcher measured the pulse rates (beats per minute) of a sample of randomly selected...
A medical researcher measured the pulse rates (beats per minute) of a sample of randomly selected adults and found the following Student's t-based confidence interval: With 95.00% Confidence, 65.946814 < mu(Pulse) < 70.928411
b) What's the margin of error for this interval?
c) If the researcher had calculated a 90% confidence interval, would the margin of error be larger or smaller?
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