The owner of Torpid Oaks B&B wanted to know the average distance its guests had traveled. A random sample of 16 guests showed a mean distance of 85 miles with a standard deviation of 32 miles. The 90 percent confidence interval (in miles) for the mean is approximately
Multiple Choice
(71.8, 98.2)
(74.3, 95.7)
(71.0, 99.0)
(68.7, 103.2)
The owner of Torpid Oaks B&B wanted to know the average distance its guests had traveled....
9. The owner of Limp Pines Resort wanted to know the average age of its clients. A random sample of 25 tourists is taken. It shows a mean age of 46 years with a standard deviation of 5 years. The width of a 98 percent CI for the true mean client age is approximately