Answer Happy

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 41 business days, the mean closing price of a certain stock was $124 52. Assume the population standard deviation is $10.30. The 90% confidence interval is (Round to two decimal places as needed) The 95% confidence interval is (Round to two decimal places as needed.) Which interval is wider? Choose the correct answer below The 90% confidence interval The 95% confidence interval
OA. You can be certain that the population mean price of the stock is either between the lower bounds of the 90% and 95% confidence intervals or the upper bounds of the 90% and 95% confidence intervals. OB. You can be certain that the closing price of the stock was confidence interval for approximately 39 of the 41 days. thin the 90% confidence interval for approximately 37 of the 41 days, and was within the 95% OC. You can be 90% confident that the population mean price of the stock is outside the bounds of the 90% confidence interval, and 95% confident for the 95% interval OD. You can be 90% confident that the population mean price of the stock is between the bounds of the 90% confidence interval, and 95% confident for the 95% interval Next