We were wondering what sort of 'conclusions' could be made in relation to the coverage analysis. Are you looking for general comparisons between coverage of publicly and privately traded companies? Or rather, an examination between possible differences between coverage of different privately traded companies and then the same for publicly traded companies? (Or both?) Do you also want us to include a discussion about how CRISP/Compustat collects data (such as linking options as seen in WRDS) as it relates to coverage?

Coverage analysis is intended to inform you as to the availability of data. Variables with poor coverage should not be used, and alternates should be considered... You should investigate the CCM linking options, but its anlysis is not required for this homework assignment.