The purpose of my survey is to determine the most important signage in our surroundings seen by Deaf people. To succeed with this, I decided to create a 5-point Likert scale (5=very important, 4=important 3=moderately important 2=less important 1=unimportant). After tallying the results, I proceeded with the commonly used descriptive statistics which take the ff:

1. Median or mode of each Likert response

2. Upper and lower quartile (range) in case no.1 doesn't suffice the tallied result of an item.

3. Bar chart for summary of tallied results

My problem and/or concern is proceeding with an inferential technique to further support my data such as that of non-parametric tests that are suitable for ordinal data (I treat them as ordinal since each item is completely independent and doesn't affect one another). I would like to ask if descriptive statistics will do to suffice my data, or is it strongly necessary that I proceed with a non-parametric test? If yes, kindly recommend me one that suits my nature of data.