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A psychologist specializing in marriage counseling claims that the proportion of couples for which her communication program can prevent divorce is at least 80%. Suppose
A psychologist specializing in marriage counseling claims that the proportion of couples for which her communication program can prevent divorce is at least 80%. Suppose we have reason to doubt this claim, and we carry out a hypothesis test. State the null hypothesisH0 and the alternative hypothesisH1 that we would use for this test.
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