1 The lifespan of xenon metal halide arc-discharge bulbs for aircraft landing lights is normally distributed with a mean of 2,000 hours and a standard deviation of 520 hours. (a) If a new ballast system shows a mean life of 2,366 hours in a test on a sample of 14 prototype new bulbs, would you conclude that the new lamp's mean life exceeds the current mean life at a = 0.01? Book No Yes rint rences (b) What is the p-value? (Round your answer to 4 decimal places.) p-value 0.0335