The seats in the employee lounge are made for discomfort so employees will not stay long. The mean duration for 35 employees would stay in the lounge is 30 minutes. Suppose that we have σ = 33 minutes. Now, determine a 95% confidence interval for the mean duration of time, μ, spent in the lounge.
(also attached as a word doc.)
The solution calculates the confidence interval for the number of seats in an employee lounge.