Intervals (6.1, 6.2, 6.3) possible Submit quiz You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 49 business days, the mean closing price of a certain stock was $105.46. Assume the population standard deviation is $10.06. The 90% confidence interval is ].). (Round to two decimal places as needed.) The 95% confidence interval is.b. (Round to two decimal places as needed.) Which interval is wider? Choose the correct answer below. Statcrunch Next