Q1. The average price of homes sold in the U.S. in 2016 was $240,000. A sample of 225 homes sold in Chattanooga in 2016 showed an average price of $236,000. It is known that the standard deviation of the population () is $60,000. We are interested in determining whether the average price of homes sold in Chattanooga is significantly less than the national average.

(Use a significance level of equal to 0.05).