Question: The average cost of a movie ticket in London is $19.63 while the average cost of a movie ticket in New York City is $10.25. Assume the standard deviations are $3.20 and $2.57, respectively, and both samples consisted of 25 theaters. At a = 0.10 can it be concluded that movie tickets cost more in London than they do in New York City? Suggest a reason for the difference, if one exists.