14.63 A travel agent randomly sampled individuals in her target market and asked, Did you use a travel agent to book your last airline flight? By cross-referencing the answers to this question with the responses to the rest of the questionnaire, the agent obtained data such as that in the following contingency table:

Did You Use a Travel Agent to Book Your Last Flight?

Age Yes No Under 30 15 30 30 to 39 20 42 40 to 49 47 42 50 to 59 36 50 60 or older 45 20 Determine if there is an association between the respondent’s age and use of a travel agent to make reservations for the respondent’s last flight.