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<< JRScience Home   Volume 12 No.2 December 2001 << Back to Volume Home

 

FIVE-FACTOR CENTRAL COMPOSITE DESIGNS ROBUST TO A PAIR OF MISSING OBSERVATIONS

 Munir Akhtar

Vice-Chanselor, Islamia University Bahawalpur, Pakistan.

 Abstract: Missing Observations in Central Composite Designs (c.c.d) are well investigated since the development of Minimaxloss criterion presented by Akhtar and Prescott [1986]. Here we investigate two missing values in different configurations of c.c.d with five factors and develop designs robust to a pair of missing observations under Minimaxloss criterion.

 

Keywords: Missing values, central composite designs, robust designs, minimaxloss criterion.