부산대학교 도서관

According to statistics, 2004 Taiwan Cosmetics Maintenance products sales amounted to 1.8 billion of dollars of standards, it is estimated that the sales value of 2008 will reach $2 billion, in which sales value 70% through some 40 department stores in the country counters, the other 30% through the general open-shelf cosmetic pathway, supermarkets, pharmaceutical makeup shops, franchise shops or professional pharmacy and hospital clinics. In this study, we have obtained the data in a Beijing cosmetics company 50,000 members of the original data, its dimensions include consumption amount, membership level, membership age, maintenance of a single rate. For enterprises, profits have always been the heaviest. Therefore, the purpose of this group is to understand the monthly consumption amount and membership level. To maintain the relationship between the single rate, the total consumption amount, the enrollment age, the above variables will affect the average monthly consumption amount, and points out the relative degree of the variable to the dependent variable, and the use of logistic regression analysis, group forecasting and analysis.