Suppose we want to determine whether height above sea level has an impact on the boiling temperature of a certain liquid. Two independent samples are taken. The first sample of size 80 taken at the coast shows a mean boiling temperature of 78 degrees Celsius and a standard deviation of 5 degrees Celsius. The second sample of size 100 taken inland has a mean boiling temperature of 80 degrees Celsius and a standard deviation of 10 degrees Celsius. Test the hypothesis at a 10% significant level that there is no difference between the two mean boiling temperatures.