Mathematics, 14.10.2019 06:00 ccollingwood

In a study of 225 adults, the mean heart rate was 72 beats per minute. assume the population of heart rates is known to be approximately normal with a standard deviation of 10 beats per minute. what is the 90% confidence interval for the mean beats per minute?

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In a study of 225 adults, the mean heart rate was 72 beats per minute. assume the population of hear...