MATH 1300 - 04 Fall 2021 Kailynn Vazquez Homewor Question 9, 6.1.36-T HW Score: 70.33%, 10.55 of 15 points Save Part 1 of 4 O Points: 0 of 1 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 40 business days, the mean closing price of a certain stock was $106.63. Assume the population standard deviation is $9.68. The 90% confidence interval is ( (Round to two decimal places as needed.) Help me solve this View an example Get more help - Clear all Check