Movie theater ticket prices have been increasing to accommodate the demand for movies formatted in 3D. The following data show the prices for adult tickets for three different movie formats in three different cities. These data can also be found in the file ticket prices.xlsx.

Format 2D ($) 3D ($) IMAX 3D ($)

New York 11 18 22 11 19 13 13 15 22 11 15 19 7 20 19 Atlanta 10 17 16 11 14 19 12 14 20 11 16 15 13 15 15 Dallas 5 14 16 7 13 17 8 11 14 10 17 16 8 12 15

a. Using a = 0.05, is there significant interaction between the city and the movie format?

b. Using a two-way ANOVA and a = 0.05, does the city have an effect on the cost of a movie?

c. Using a two-way ANOVA and a = 0.05, does the movie format have an effect on the cost of a movie?

d. If warranted, determine which means are significantly different using a = 0.05.

e. Construct an interaction plot for the city and the movie format.

AppendixLO1