SOLUTION: Women have pulse rates that are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per minute. a. Dr. Lopez sees exactly 25 female pa

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Question 863820: Women have pulse rates that are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per minute.
a. Dr. Lopez sees exactly 25 female patients each day. Find the probability the 25 randomly selected women have a mean pulse rate between 70 bpm and 85 bpm.
b. Dr. Lopez sees exactly 25 female patients each day. Find the probability the 25 randomly selected women have a mean pulse rate between less than 70 bpm.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
mean of 77.5 beats per minute and a standard deviation of 11.6 beats per minute.
Sample s = 11.6/sqrt(25) = 2.8
a) normalcdf(70,85, 77.5, 2.8)
b) normalcdf(-100, 70, 77.5,2.8) |-100 a placeholder