According to Nielsen//NetRatings, the average visitor to the American Greetings Website spends 11.85 minutes at the site. Assuming this finding to be based on a random sample of 20 visitors to the site, a POPULATION standard deviation of 3.0 minutes, and a population of visiting times that is approximately normally distributed, a 95% confidence interval for the population mean is closest to
Group of answer choices
10.5352 to 13.1648
10.7465 to 12.9535
10.2870 to 13.4130
10.8840 to 12.8160
10.1226 to 13.5774