13-10. Wheels Unlimited operates a limousine service between the local airport and one of the major hotels in a large city. The round trip typically takes one hour, but one of the new drivers seems to be taking more than the usual or expected time of one hour. Fifteen of her runs (expressed in minutes)

are timed:

56 62 55 70 69 65 68 71 75 80 66 62 63 58 68 Use the Wilcoxon signed rank test to determine if, at the 5% level, the median time is above one hour.