In the case study, Facility A spent less overall on both pest
control and sanitation than Facility B. This contradicts the working
hypothesis that more spending on sanitation would lead to better
sanitation which in turn would lead to lower pest control investments.
The increased spending that Facility B devotes to sanitation
suggests that annual expenditures may not be a sufficient
indicator of the quality of facility sanitation or a predictor of facility
investment in pest control. Other factors may prove more
important.