Based on a random sample of 1,120 Americans 15 years of age or older, the mean amount of time spent eating or drinking each day is 1.23 hours. Assuming that the population standard deviation for amount of time eating or drinking is 0.65 hour, construct and interpret a 90% confidence interval for the mean amount of time spent eating or drinking each day by Americans age 15 years or older.

Based on a random sample of 1,120 Americans 15 years of age or older, the mean amount of time spent eating or drinking each day is 1.23 hours. Assuming that the population standard deviation for...

Based on a random sample of 1,120 Americans 15 years of age or older, the mean amount of time spent eating or drinking each day is 1.23 hours. Assuming that the population standard deviation for amount of time eating or drinking is 0.65 hour, construct and interpret a 90% confidence interval for the mean amount of time spent eating or drinking each day by Americans age 15 years or older.

Jun 08, 2022