A research study examined the effects of a new drug versus an old drug on hypertension. There were 172 people enrolled in the new drug group, and 125 of them were hypertensive. For the old drug group, 165 people were enrolled and of those, 76 were hypertensive. Was there a difference in the proportion of people who were hypertensive between the new drug and the old drug? Calculate the z or t test statistic

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