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Algebra
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OpenStudy (toribyrd33):
In a study of 250 adults, the mean heart rate was 70 beats per minute. Assume the population of heart rates is known to be approximately normal with a standard deviation of 12 beats per minute. What is the 99% confidence interval for the mean beats per minute?
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OpenStudy (toribyrd33):
@perl can you help me with this one?
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