Coopers & Lybrand surveyed 204 chief executives of fast-growing small companies. Only 121 of these executives had a management succession plan in place. A spokesman for Coopers Lybrand said that many companies do not worry about management succession unless it is an immediate problem. However, the unexpected exit of a corporate leader can disrupt and unfocus a company for long enough to cause it to lose momentum. Use the data given to compute a 92% confidence interval to estimate the proportion of all fast-growing small companies that have a management-succession plan. Enter the upper confidence interval limit. Enter your answer to 4 decimal places.

If you can show how to set this up in R, please do so. Thank you!