The Reliance Insurance Company is interested to investigate on annual claimant satisfaction of its policyholders. A random sample of 30 claimants was asked to rate their satisfaction with the quality...

The Reliance Insurance Company is interested to investigate on annual claimant satisfaction of its policyholders. A random sample of 30 claimants was asked to rate their satisfaction with the quality of the service: satisfied or unsatisfied. 12 of them were not satisfied with the service. Construct a 95% confidence interval estimate for the proportion of claimants who were satisfied with the service provided by the company.