Construct a 95 confidence interval estimate for the

Question

The file FastFood contains the amount that a sample of fifteen customers spent for lunch ($) at a fast-food restaurant:

7.42 6.29 5.83 8.34 9.51 7.10 6.80 5.90 4.89 6.50 5.52 7.90 8.30 9.60

a) Construct a 95% confidence interval estimate for the population mean amount spent for lunch ($) at a fast-food restaurant, assuming a normal distribution.

b) Interpret the interval constructed in (a).

Answer 1

As represent below files on the basic amount and interval estimation for the population The file Fast-food encloses the amount that an example of 15 customers spent for lunch ($) at a fast-food restaurant: 7.42 6.29 5.83 8.34 9.51 7.10 6.80 5.90 4.89 6.50 5.52 7.90 8.30 9.60 a) Construct a 95% confidence interval estimation for the population mean amount spent for lunch ($) at a fast-food restaurant, assuming a normal distribution. b) Interpret the interval constructed in (a).