Question

1. A nutritionist wants to determine how much time nationally people spend eating and drinking. Suppose for a random sample of 933 people age 15 or​ older, the mean amount of time spent eating or drinking per day is 1.92 hours with a standard deviation of 0.58 hour.

Determine and interpret a 99​% confidence interval for the mean amount of time Americans age 15 or older spend eating and drinking each day.

2. A simple random sample of size n is drawn. The sample​ mean, x "overbar" is found to be 18.7 and the sample standard​ deviation, s, is found to be 4.6

Construct a 95​% confidence interval about μ if the sample​ size, n, is 34.

Lower and Upper Bound?

Answer 1