Question: 1) Do these data provide evidence that the population proportion of oral contraceptive use among cases is greater than the population proportion of oral contraceptive

1) Do these data provide evidence that the population proportion of oral contraceptive use among cases is greater than the population proportion of oral contraceptive similar controls?

2) What is a 95% confidence interval from the graph information and interpret these results.

Control OC Use?

Case OC Use Yes No Total

Yes 10 57 57

No 13 95 108

Total 23 152 175

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