The research made by this author was supported in part by the Office of Naval Research grant N000 14-80-C-0163 and a jerzy Neyman Lectureship and was completed while the author was visiting at the Department of Statistics,University of California,Berkele
In this paper we develop tests using L-statistic for a constant relative trendagainst a convex ordered relative trend.Unbiasedness of the test is obtained.For a certainpath of trends,the score function can be chcsen s...