Mathematics, 11.04.2020 05:30 liyah450

In a study of 250 adults, the average 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 does a margin of error of 2 for the 98% confidence interval of the average beats per minute mean?

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In a study of 250 adults, the average heart rate was 70 beats per minute. Assume the population of h...