UCL, LCL, and How does the width of confidence interval change as the level of confidence increases?

Upper and lower control C.I., not UCL and LCL please!

A sample of 33 airline passengers found that the average check-in time is 2.167. Based on long- term data, the population standard deviation is known to be 0.48. Find a 90%, 95%, and 99% confidence interval for the mean check-in time. Explain the changes on confidence interval as the level of confidence increases. Sample Mean Population S.D. Sample Size Alpha 2.167 0.480 33 0.10 2.167 0.480 33 0.05 2.167 0.480 33 0.01 z-value 1.6449 1.9600 2.5758 + Upper Limit C.1. Lower Limit C.I. Confidence Level 90% 95% 99% How does the width of confidence interval change as the level of confidence increases