I would like to find out if there is any impact of social media on the creation of entrepreneurial opportunities for entrepreneurs. I have two groups (Online Business and traditional Business) and 20 statements in total that I have measured using 5 point likert scale (strongly agree, agree, neutral, disagree, strongly disagree and Not applicable(suggested by my Supervisor)). Those who run traditional business chose "not applicable" for a lot of statements and I am now perplexed how to deal with this not applicable option! They are not missing values so I cannot ignore them as they bear important information about the traditional business group. My Supervisor told me that I cannot even score this as 0 or 6. I am using R and R ignores Not Applicable option while calculating correlation and even for other calcations as well. Moreover, I tried factor analysis but this "not applicable" option is creating problem in every step.
I am new to deal with likert scale and confused how to proceed with my data to figure out the answer of my research question.