From a random sample of 48 business days from November 14, 2017 through January 23, 2018, London’s crude oil prices had a mean of \($59.23.\) Assume the population standard deviation is \($2.79.\) 

You are given the sample mean and the population standard deviation. Use this information to construct 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals.