Airlines overbook flights in order to reduce the odds of flying with unused seats. An article in Transportation Research (Vol. 38, 2002) investigated the optimal overbooking policies for major airlines. One of the variables measured for each airline was the compensation (in dollars) per bumped passenger required to maximize future revenue. Consider the threshold levels of compensation for a random sample of 10 major airlines shown in the next table. Estimate the true mean threshold compensation level for all major worldwide airlines using a 90% confidence interval. Interpret the result practically.

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1,210 1,625 850 1,560 1,370 2,155 1,415 2,220 825 1,500