From these we calculate 129.44 122.65 sx 9.15 sy 11.02., Ask an Expert

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In a study of the effect of oral contraceptives (OCs) on blood pressure, measurements were made on 10 OC users (x) and 14 non-users (y). From these we calculate = 129.44; = 122.65; sx = 9.15; sy = 11.02. Perform the test H0: against the alternative H1:, using the two sample t-test, and state any assumptions you may require to do this test.

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