Key points are not available for this paper at this time.
Judith M. Tanur, George Casella, Richard Dykstra, Mark P. Finster, Donald P. Gaver, Jr., Joel Greenhouse, Gudmund R. Iversen, guillermina Jasso, Jan Kmenta, S. James Press, Seymour Sudman, Luke Tierney, Jessica Utts, Katherine K. Wallman, Stanley Wasserman, Mark Watson, Journal of the American Statistical Association, Vol. 84, No. 407 (Sep., 1989), pp. 830-834
Tanur et al. (Fri,) studied this question.