[3] DEVORE J L.Probability and statistics for engineering and the sciences[M].9th ed.Monterey:Brooks/Cole Pu-blishing Company, 1982.
[4] ADCOCK C J.Sample size determination:a review[J].Journal of the Royal Statistical Society Series D(The Sta-tistician), 1997, 46(2):261-283.
[8] BARLOW R E, BARTHOLOREMEW D J, BREMNER J M, et al.Statistical inference under order restrictions:the theory and application of isotonic regression[M].New York:Wiley, 1972.