A large sample of 200 units has 118 cases that match a certain criteria. Find a 95% confidence interval for those who have that characteristic.
Confidence Interval Formula for those who meet the criteria is as follows:
p^ - zα/2σp^ < p < p^ + zα/2σp^ where:z = Normal distribution Z-score from a probability where α = ½(1 - Confidence Percentage)
Calculate p^
| p^ = | x |
| n |
| p^ = | 118 |
| 200 |
p^ = 0.59
