Question

In 2003​, a reproductive clinic reported 44 live births to 165 women under the age of​ 38, but only 6 live births for 78 clients aged 38 and older. Is there evidence of a difference in the effectiveness of the​ clinic's methods for older​ women?

1. find z=

2. find P-value

3. if you could conclude that there was difference, estimate that difference, p1-p2, with a 90% confidence interval... what is it (round 3 decimal places)

4. interpret your interval if any were created

the 90% confidence that the proportion of successful live births at the clinic is between....

Answer 1

4. The 90% confidence that the proportion of successful live births at the clinic is between 0.114 and 0.265.

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