You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervds tor the population mean. Interpret the results and compare the widths of the condence intervals. From a random sample of 42 business days. the mean closing price at a certain stock was 124.10. Assume the population standard deviation is 59.88. The 90% confidence interval is( , ). (Round to two decimal places as needed.)