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A marriage counselor has traditionally seen that the proportion p of all married couples for whom her communication program can prevent divorce is 7 5
A marriage counselor has traditionally seen that the proportion of all married couples for whom her communication program can prevent divorce is After making some recent changes, the marriage counselor now claims that her program can prevent divorce in more than of married couples. In a random sample of married couples who completed her program, of them stayed together. Based on this sample, is there enough evidence to support the marriage counselor's claim at the level of significance?
Perform a onetailed test. Then complete the parts below.
Carry your intermediate computations to three or more decimal places. If necessary, consult a list of formulas.
a State the null hypothesis and the alternative hypothesis
:
:
b Determine the type of test statistic to use.
c Find the value of the test statistic. Round to three or more decimal places.
d Find the pvalue. Round to three or more decimal places.
e Is there enough evidence to support the marriage counselor's claim that the proportion of married couples for whom her program can prevent divorce is more than
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