Please answer a-e

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 215 married couples who completed her program, 138 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 complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas.) (a) State the null hypothesis , and the alternative hypothesis H. p H : 0 X S P (b) Determine the type of test statistic to use. (Choose one) 0-0 030 020 (c) Find the value of the test statistic. (Round to three or more decimal places.) 040 00 0 X 5 ? (d) Find the p-value. (Round to three or more decimal places.) 0 (e) Can we reject the psychologist's claim that the proportion of married couples for whom her program can prevent divorce is at least 79%? OYes ONo