Suppose that men's mean heartrate is 78.3 beats per minute (bpm), and women's mean heartrate is 73.9 bpm. Both have a standard deviation of 4.7 bpm. You randomly poll 25 men and 25 women. What is the mean of the distribution of sample mean differences (men bpm - women bpm)? bpm What is the standard deviation of the distribution of sample mean differences (men bpm - women bpm)? bpm Find the probability that the mean blood pressure of the sample of men is less than the mean blood pressure of the sample of women.

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