Based on this data, develop a QFD$-$style matrix for Summerlin Contracting, relating the four job site citizenship ratings to the three job site design variables. Document your steps in translating the information provided into workable forms for the cal$-$ culation of correlation coefficients. State any important assumptions you made. $2.$ Based on your OFD analysis, of Summerlin Contracting can invest in only one of the job site design variables for its next project, which do you recommend, and why? Which, if any, do you recommend that it avoid? $3.$ OFD analysis is limited to the assumptions of the correlation coefficients from which it is constructed. As a result, this style of analysis relies on simple pairings of pos$-$ sible cause$-$and$-$effect relationships, and won't reveal if more complicated interac$-$ tions exist, such as two design features each having a benefit, but the presence of both features canceling some benefit. Logically, could there exist more complex interrelationships among two or more of the job site design variables and one or more of the job site quality ratings, being missed by your matrix? If so$,$ describe an example.