14 October, 11:57
In 2001 a national vital statistics report indicated that about 3% of all births
produced twins. Is the rate of twin births smaller among very young mothers?
Data from a large city hospital found that only 7 sets of twins were born to 469
teenage girls. Test an appropriate hypothesis and state your conclusion under
14 October, 12:16
The student has the following work towards answering the question but several things have been written down or calculated incorrectly.
H0 : P = 0.9
Ha : p < 0.9
SRS, 750 > 10
P = 657/750 = 0.876
Know the Answer?
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» In 2001 a national vital statistics report indicated that about 3% of all births produced twins. Is the rate of twin births smaller among very young mothers?