The propagation of fatigue cracks in various aircraft parts has been a subject of extensive study in recent years. The data below shows propagation lives to reach a given crack size in fastener holes...

The propagation of fatigue cracks in various aircraft parts has been a subject of extensive study in recent years. The data below shows propagation lives to reach a given crack size in fastener holes intended for use in military aircraft. 0.736 0.863 0.865 0.913 0.915 0.937 0.983 0.1007 1.011 1.064 1.109 1.132 1.140 1.1153 1.253 1.394. find the mean and median ( 2) how much could the largest sample observation be decreased without affecting the value of the median