Summary data on ratings of patient satisfaction and importance for the survey item "waiting time prior to being seen by a physician" is shown in given Table for a total of 400 patients. Perceived satisfaction was rated on a Likert scale from 1 to 5, while importance was also rated on a Likert scale from 1 to 5 using the nomenclature discussed.
Determine if the categorical variables "satisfaction rating" and "importance rating" are independent using a level of significance of 5%.
