Amtrak has designed and launched a new type of high-speed train called the "Dun-train". Amtrak claims it is significantly faster than traditional trains. During the trial operation stage, the inspector records: Within 100 runs, the average speed of Dun-train was 160 mph with a sample variance of 400. Within 200 runs, the average speed of traditional trains was 130 mph with a sample variance of 200. Based on this data, what should the conclusion of the inspector be (i.e. on whether the Dun-train is indeed faster than the traditional trains)? The information contained in these documents is confidential, privileged and only for the information of the intended recipient and may not be used, published or redistributed without the prior written consent of the Booth faculty member(s) teaching the course. Distributing or posting this material in any way is a violation of the Honor Code and may lead to disciplinary action