Many homeowners use TIKI torches for outside decoration and to burn special oil to repel insects. Independent random samples of two types of oil were obtained, and the burn time for 3 ounces of each...

Many homeowners use TIKI torches for outside decoration and to burn special oil to repel insects. Independent random samples of two types of oil were obtained, and the burn time for 3 ounces of each was recorded (in hours). The summary statistics are given in the following table.