The useful life of a bicycle bought at Basement-mart fits a log normal distribution with a mean of 17 months and a standard deviation of 10.54 months. Suppose that 96 bicycles are randomly chosen, and...

The useful life of a bicycle bought at Basement-mart fits a log normal distribution with a mean of 17 months and a standard deviation of 10.54 months. Suppose that 96 bicycles are randomly chosen, and let


¯¯¯X=the average useful life of a bicycle bought at Basement-mart, from a sample of 96 bicycles (in months).