A psychologist specializing in marriage counseling claims that, among all married couples, the proportion  p  for whom her communication program can prevent divorce is at least  79% . In a random sample of  235  married couples who completed her program,  179  of them stayed together. Based on this sample, can we reject the psychologist's claim at the  0.05  level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. The null hypothesis: H0:   The alternative hypothesis: H1:   The type of test statistic: (Choose one)ZtChi squareF             The value of the test statistic: (Round to at least three decimal places.)   The p-value: (Round to at least three decimal places.)   Can we reject the psychologist's claim that the proportion of married couples for whom her program can prevent divorce is at least  79% ?

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.