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 63 dates, the mean record high daily temperature in a certain city has a mean of 83.41°F. Assume the population standard deviation is 14.99°F. 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. O The 90% confidence interval O The 95% confidence interval Interpret the results. O A. You can be certain that the mean record high temperature was within the 90% confidence interval for approximately 57 of the 63 days, and was within the 95% confidence interval for approximately 60 of the 63 days. O B. You can be 90% confident that the population mean record high temperature is outside the bounds of the 90% confidence interval, and 95% confident for the 95% interval. OC. You can be 90% confident that the population mean record high temperature is between the bounds of the 90% confidence interval, and 95% confident for the 95% interval. O D. You can be certain that the population mean record high temperature is either between the lower bounds of the 90% and 95% confidence intervals or the upper bounds of the 90% and 95% confidence intervals.

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 43 business days, the mean closing price of a certain stock was $107.58. Assume the population standard deviation is $10.01. The 90% confidence interval is ( ). (Round to two decimal places as needed.)

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 59 dates, the mean record high daily temperature in a certain city has a mean of 82.46°F. Assume the population standard deviation is 14.93°F. The 90% confidence interval is ( ). (Round to two decimal places as needed.).

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 63 ​dates, the mean record high daily temperature in a certain city has a mean of 85.67°F. Assume the population standard deviation is 14.22°F.       The​ 90% confidence interval is ​(nothing​,nothing​). ​(Round to two decimal places as​ needed.) The​ 95% confidence interval is ​(nothing​,nothing​). ​(Round to two decimal places as​ needed.) Which interval is​ wider? Choose the correct answer below.     The​ 90% confidence interval   The​ 95% confidence interval Interpret the results.     A. You can be certain that the mean record high temperature was within the​ 90% confidence interval for approximately 57 of the 63 ​days, and was within the​ 95% confidence interval for approximately 60 of the…

You are given the sample mean and the population standard deviation. Use this infor Next quesion 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 66 dates, the mean record high daily temperature in a certain city has a mean of 84.82°F. Assume the population standard deviation is 13.71°F. The 90% confidence interval is OD. (Round to two decimal places as needed.)

A random sample of 15 exam scores showed a standard deviation of 6.0 points. Find the 95 percent confidence interval for the population standard deviation. Use Appendix E to obtain the values of  χ2LχL2 and χ2UχU2 . (Round your answers to 2 decimal places.) The 95% confidence interval is from ______ to __________  .

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 80 ​dates, the mean record high daily temperature in a certain city has a mean of 83.78°F. Assume the population standard deviation is 14.92°F. The​ 90% confidence interval is ​(enter your response here​,enter your response here​). ​(Round to two decimal places as​ needed.)

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 61​dates, the mean record high daily temperature in a certain city has a mean of 85.61°F. Assume the population standard deviation is 14.09°F.       The​ 90% confidence interval is ​(enter your response here​,enter your response here​). ​(Round to two decimal places as​ needed.

The breaking strengths of cables produced by a certain manufacturer have a standard deviation of 109 pounds. A random sample of 150 newly manufactured cables has a mean breaking strength of 1800 pounds. Based on this sample, find a 90% confidence interval for the true mean breaking strength of all cables produced by this manufacturer. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) What is the lower limit of the 90% confidence interval? What is the upper limit of the 90% confidence interval?

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 80 dates, the mean record high daily temperature in a certain city has a mean of 84.56°F. Assume the population standard deviation is 15.26°F. The 90% confidence interval is (_,_)(Round to two decimal places as needed.)