Shanice and Peter are students enrolled in Marketing. They are doing a joint research on brand loyalty. They believe that the more satisfied a customer is with a particular product, the more loyal they will be to that company. Shanice believes that this is a casual relationship and that the best techniques to test this type of relationship is the correlation coefficient and scatter plot. Peter on the other hand , believes that a regression model and the coefficient of determination would be more appropriate .Who do you agree with and why ?