A report states the average temperature for a region in the summer months is 62 degrees F. A resident claims that the average temperature is higher. A sample of 15 cities in the region had an average temperature of 67 degrees F with a sample standard deviation of 5.1 degrees F. Test the resident's claim at alpha = 0.05.
make your choice as to what type of test this is (right, left, or two-tailed).