To run a certain activity, a population of companies use a finite set of inputs. There are 8 different inputs, but each company may not use all of them. For instance, company 1 uses inputs A, B and D, whereas company 2 uses inputs B, D, E and F
I have conducted a survey to ask 30 different companies about which inputs they use, and I would like to statistically evaluate the most used input. What statistical test do you recommend for this?