A local credit union is interested in creating a Visa card product that would appeal to graduating college seniors. A marketing research class conducted a study of 72 graduating seniors in which their attitudes were assessed toward various credit card features. For each of the paired comparison t-tests shown in Figure 13.23, state the null hypothesis, and your conclusion based on the findings. Do you have any reservations about the study? Explain. What would you recommend the credit union do?

Justify your decisions.