dolution

A national publication reported that a university student living away from home spends, on average, no more than €15 per month on coffee. You believe this figure is too low and want to disprove the claim. To conduct the test, you randomly select 17 university students and ask them to keep track of the amount of money they spend during a given month on coffee. The sample produces an average expenditure on coffee of €19.34, with a population standard deviation of €4.52. Use these sample data to conduct the hypothesis test. Assume you are willing to take a 10% risk of making a Type I error and that spending on coffee per month is normally distributed in the population.