factorial and split-plot designs are two statistical procedures used to conduct agricultural field experiments. both designs are used frequently to quantify the main and interaction effects of two or more factors. however, split-plot design is recommended for specific situations depending on major and minor goals of the study, characteristics of the factors, and precision of statistical testing...

Summary In this research, an intrinsically nonlinear split-plot design model (INSPDM) is formulated and studied. It was by fitting a Johnson–Schumacher (JS) function to the mean function. The fitted parameters are estimated using generalized least squares (EGLS) technique based on Gauss–Newton procedure with Taylor series expansion, minimizing objective of model. variance components for whole p...

This study focused on the modelling and experimental investigation of Copper-Zinc alloy using Split-split plot design. The effects process parameters such as percentage by volume material, material type (copper zinc), pressure their interactions mechanical properties produced copper-zinc split-split design was investigated. examined in this include; tensile strength, modulus elasticity, shear h...