Number 13:

ou 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 th confidence intervals. rom a random sample of 58 dates, the mean record high daily temperature in a certain city has a mean of 83.83 F. Assume the population standard deviation is 15.12 F. he 90% confidence interval is () Round to two decimal places as needed.) he 95% confidence interval is () Round to two decimal places as needed.) Which interval is wider? Choose the correct answer below. D The 95% confidence interval The 90% confidence interval terpret the results. A. 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 th 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. C. You can be certain that the mean record high temperature was within the 90% confidence interval for approximately 52 of the 58 days, and was within the 95% confidence in D. 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