Have your instructor record the number of meals each student in your class eats out in a week. Assume that the standard deviation is known to be 3 meals. Construct an approximate 95% confidence interval for the true mean number of meals students eat out each week.
- Calculate the sample mean.
- σ = 3 and n = the number of students surveyed.
- Construct the interval
We say we are approximately 95% confident that the true average number of meals that students eat out in a week is between _______ and_______.