Question 12.39

39. ANOVA Can Be Applied to Two populations. Researchers are interested in whether the mean heart rates of women and men differ. The following table provides summary statistics of random samples of pulse rates drawn from groups of women and men.

Test, using , whether the population mean pulse rates differ.
Which method of inference from an earlier chapter could we also use to solve this problem?

	Females	Males
	65	65
	98.384	98.104
	0.743	0.699

12.1.39

(a) . : The two population means are not equal. = the population mean heart rate for females; = the population mean heart rate for males. Reject if the . , . Since the is , we reject . There is evidence that the population mean heart rates are not equal.

(b) Inference for Two Independent Means, Section 10.2.