A marnage counselor has traditionally seen that the proportion p of all married couples for whom her communication program can prevent divorce is 79%. After making some recent changes, the marriage counselor now claims that her program can prevent divorce in more than 79% of married coupies. In a random sample of 225 married couples who completed her program, 181 of them stayed together, Based on this sample, is there enough evidence to support the marriage counselor's claim at the 0.10 level of significance? Perform a one-tailed 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 H, and the alternative hypothesis H. H, : (b) Determine the type of test statistic to use. (Choose one) D-0 (c) Find the value of the test statistic. (Round to three or more decimal places.) (d) Find the p-value. (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 79%? OYes ONo

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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A marnage counselor has traditionally seen that the proportion p of all married couples for whom her communication program can prevent divorce is 79%. After
making some recent changes, the marriage counselor now claims that her program can prevent divorce in more than 79% of married coupies. In a random
sample of 225 married couples who completed her program, 181 of them stayed together, Based on this sample, is there enough evidence to support the
marriage counselor's claim at the 0.10 level of significance?
Perform a one-tailed 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 H, and the alternative hypothesis H.
(b) Determine the type of test statistic to use.
(Choose one)
ORO
(c) Find the value of the test statistic. (Round to three or more decimal places.)
(d) Find the p-value. (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 79%?
OYes ONo
Transcribed Image Text:A marnage counselor has traditionally seen that the proportion p of all married couples for whom her communication program can prevent divorce is 79%. After making some recent changes, the marriage counselor now claims that her program can prevent divorce in more than 79% of married coupies. In a random sample of 225 married couples who completed her program, 181 of them stayed together, Based on this sample, is there enough evidence to support the marriage counselor's claim at the 0.10 level of significance? Perform a one-tailed 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 H, and the alternative hypothesis H. (b) Determine the type of test statistic to use. (Choose one) ORO (c) Find the value of the test statistic. (Round to three or more decimal places.) (d) Find the p-value. (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 79%? OYes ONo
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