The mean diastolic blood pressure among american men aged

Reference no: EM13609690

The mean diastolic blood pressure among American men aged 18-44 is known to be 81 mmHg. A random sample 150 Canadian males in the same age group yielded a mean diastolic blood pressure of 78.75 mm Hg with a standard deviation of 12 mm Hg.

(a) Is there sufficient evidence at ? = .01 to conclude that the mean diastolic blood pressure among Canadian men aged 18-44 differs significantly from that of their American counterparts? (Use the t-test; the procedure is outlined on pg 58 of the text).

(b) What assumption (if any) about the population (from which the sample came) should hold in order that the t-test in (a) be valid? Explain.

Reference no: EM13609690

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