Motor vehicle repair, rental and other services; other repair services; other purchased intercity trans- portation; legal and fu- neral services; barber- shops, beauty parlors, and health clubs; nursing homes; laundries; em- ployment agency fees; accounting and tax return preparation services; recreation (except cable TV, casino gambling, parimutuel net receipts, lotteries, and computer online services); hotels and motels; commercial business, trade, and cor- respondence
schools; educational services not elsewhere classified; re- search organizations and foundations.
Cluster analysis It has been highly recommended that cluster analysis be conducted to complement the results of correspondence analysis (Lebart, 1994), because of the possibility of shrinkage and/or distortion due to the effect of outliers of the principle dimension in correspondence respondence
. The results of cluster analysis are robust against the effect of the outliers and can provide more detailed information about the distances between the variables and categories.