On the Moments of the Beta Normal D i s t r i b u t i o n . . . 1 A. K. Gupta andS. Nadarajah
INFERENCE
Parameter Estimation of the Shape Parameter of the
Castillo-Hadi M o d e l . . . 15 H Nagaisuka and T. Kamakura
Comparing Location Estimators for Exponential Mixtures
Under Pitman's Measure of C l o s e n e s s . . . 29 J. L. Hebert and S. M. Scariano
Score Test for Zero Inflated Generalized Poisson Regression
M o d e l . . . 47 P L Gupta, R C. Gupta. and R. C, Tripathi
Unified Solutions of Integral Equations of SPRT for
Exponential Random Variables . . . 65 Y.-D Lee
DESIGN OF EXPERIMENTS
Estimation of Error Variance in the Analysis of Experiments
Using Two-Level Orthogonal Arrays ... 75 Y. Oono and N. Shinozaki
MULTIVARIATE ANALYSIS Degree Frequencies in the Minimal Spanning Tree and
Dimension Identification . . . 99 M. R. Brito and A. J. Qwroz
Contents Continued
TIME SERIES ANALYSIS
Asymptotics of ^-Estimators in Moving Average Time
Series Models. . . . 107 L Wang
RELIABILITY AND SURVIVAL ANALYSIS
A Hvbrid Scale Intensity Model for Recurrent Event Data ... 119
F.
The Presmoothed Nelson— Aalen Estimator in the Competing
Risk Model . . . 135 C El-Noutv and R Lamur
BIOSTATISTICS
A New Interim Monitoring Statistic for Croup Sequential
Clinical Trials . . . 153 B K Moser andJ M Tchh\
STATISTICAL QUALITY CONTROL
Exact Multi-attribute Acceptance Single Sampling Plan . . . 165 M P CiaJrc ami R ,\ Ratnhulli
GOODNESS-OF-FIT TESTS
A New One-Sample Test for Goodness-of-Fit . . . 181 ./
Letter to the Editor . . . 195