You are the marketing research manger for General Electric. GE has developed a luxury refrigerator model that has several innovative features and will be sold for a premium price of $1,995. A national survey was conducted to determine consumer response to the proposed model. The data were obtained by conducting mall intercept interviews in 10 major U.S. cities. Although the resulting sample of 2,639 respondents is fairly representative on all other demographic characteristics, it under represents the upper-income households. The marketing research analyst, who reports to you, feels that weighting is not necessary. Discuss this question with the analyst (a student in your class).