M022. Supercavitarion is a propulsion technology for undersea vehicles that can greatly increase their speed. It occurs above approximately 50 meters per second, when the pressure drops off sufciently to allow the water to dissociate into water vapor forming a gas bubble behind the vehicle. When the gas bubble completely encloses the vehicle, supercavitation is said to occur. Eight {n = 8) tests were conducted on a scale model of an undersea vehicle in a towing basin with the average observed speed x _ = 102.2 meters per second. Assume that speed is normally distributed with o = 4 meters per second. Use a = 0.05, test H0: p = 10-0 versus H : p