A bloom berg business week subscriber study asked In the past 12 months when traveling for business what type of airline ticket did you purchase most often? a second question asked if the type of airline ticket purchased most often was for domestic or international travel. Sample data obtained are shown in the following table

(Domestic) first class 29 business class 95 economy class 518

(International) first class 22 business class 121 economy v class 135

a. using a .05 level of significance is the type of ticket purchased independent of the type of flight what is your conclusion

b. discuss any dependence that exist between the type of ticket and type of flight