Using data from NHANES, we looked at the pulse rate for nearly 800 people to see whether it is plausible that men and women have the same population mean. NHANES data are random and independent. Minitab output follows.

a. Are the conditions for using a confidence interval for the difference between two means met?
b. State the interval in a clear and correct sentence.
c. Does the interval capture 0? Explain what that shows.

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Two-Sample T: CI Sample Womer Men 384 372 Mean 76.3 72.1 StDev 12.8 13.0 SE Mean 0.65 0.67 Difference = μ (1) -시2) Batimate for difference: 4.200 958 CI for difference: 2.357, .043)