SOLUTION: A study that fourteen of 180 publicly traded business services companies failed a test for compliance with Sarbanes-Oxley requirements for financial records and fraud protection. A

Question 1137864: A study that fourteen of 180 publicly traded business services companies failed a test for compliance with Sarbanes-Oxley requirements for financial records and fraud protection. Assuming that these are a random sample of all publicly traded construct a 95% confidence interval for the overall noncompliance proportion (Round answer to 4 decimal places)
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
14/180=0.0778
half-interval is 1.96* sqrt (0.0778*0.9222/180)=0.0391
interval is 0.0778+/-half-interval.
CI is (0.0387, 0.1169)
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