In 2002 a national vital statistics report indicated that about 3.4% of all births produced twins. Is the rate of twin births the same among very young​ mothers? Data from a large city hospital found only 13 sets of twins were born to 517 teenage girls. Test an appropriate hypothesis and state your conclusion. Be sure the appropriate assumptions and conditions are satisfied before you proceed. Are the assumptions and the conditions to perform a​ one-proportion z-test​ met?     Yes   No State the null and alternative hypotheses. Choose the correct answer below.     A. H0​: p=0.034 HA​: p>0.034   B. H0​: p=0.034 HA​: p≠0.034   C. H0​: p=0.034 HA​: p<0.034   D. The assumptions and conditions are not​ met, so the test cannot proceed. Determine the​ z-test statistic. Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.     A. z=nothing ​(Round to two decimal places as​ needed.)   B. The assumptions and conditions are not​ met, so the test cannot proceed.

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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.