This study uses the existing second order rotatable design to obtain optimum design based on the known classical optimality criteria that is the determinant criterion, the average-variance criterion, the smallest-Eigen value criterion and the trace criterion. These criteria measure the desirability of a design, D-optimum design minimizes the content of the ellipsoidal confidence region for the parameters of the linear model, A-optimum design minimizes the sum (or average) of the variances of the parameter estimates, E-criterion reduces the variance of each individual parameter estimate and T-criterion is one that has not enjoyed much use because of the linearity aspect of T-criterion. This study considers the already existing twenty four points three dimensional specific rotatable design of order two. The information matrices C1, for this design is obtained from the moment matrix M, for the second order model for three factors using the relation C=(K1M-1K)-1, where M=1/N(X1X), is the moment matrix, K is the coefficient matrix of the parameter sub system of interest. Our parameter system of interest is that of the linear and pure quadratic factors only. The optimality criteria for the design with the corresponding information matrix C1, is determined as A-optimal.
Published in | American Journal of Theoretical and Applied Statistics (Volume 9, Issue 6) |
DOI | 10.11648/j.ajtas.20200906.16 |
Page(s) | 306-311 |
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2020. Published by Science Publishing Group |
Rotatable Design, Moment Matrix, Optimality Criteria, Order
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APA Style
Kiplagat Nicholas Kipkosgei, Mutiso John Muindi, Rambaei Keny Silver Jeptoo. (2020). Calculus Optimum Values Optimality Criteria for Twenty Four Points Specific Second Order Rotatable Design in Three Dimensions. American Journal of Theoretical and Applied Statistics, 9(6), 306-311. https://doi.org/10.11648/j.ajtas.20200906.16
ACS Style
Kiplagat Nicholas Kipkosgei; Mutiso John Muindi; Rambaei Keny Silver Jeptoo. Calculus Optimum Values Optimality Criteria for Twenty Four Points Specific Second Order Rotatable Design in Three Dimensions. Am. J. Theor. Appl. Stat. 2020, 9(6), 306-311. doi: 10.11648/j.ajtas.20200906.16
AMA Style
Kiplagat Nicholas Kipkosgei, Mutiso John Muindi, Rambaei Keny Silver Jeptoo. Calculus Optimum Values Optimality Criteria for Twenty Four Points Specific Second Order Rotatable Design in Three Dimensions. Am J Theor Appl Stat. 2020;9(6):306-311. doi: 10.11648/j.ajtas.20200906.16
@article{10.11648/j.ajtas.20200906.16, author = {Kiplagat Nicholas Kipkosgei and Mutiso John Muindi and Rambaei Keny Silver Jeptoo}, title = {Calculus Optimum Values Optimality Criteria for Twenty Four Points Specific Second Order Rotatable Design in Three Dimensions}, journal = {American Journal of Theoretical and Applied Statistics}, volume = {9}, number = {6}, pages = {306-311}, doi = {10.11648/j.ajtas.20200906.16}, url = {https://doi.org/10.11648/j.ajtas.20200906.16}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajtas.20200906.16}, abstract = {This study uses the existing second order rotatable design to obtain optimum design based on the known classical optimality criteria that is the determinant criterion, the average-variance criterion, the smallest-Eigen value criterion and the trace criterion. These criteria measure the desirability of a design, D-optimum design minimizes the content of the ellipsoidal confidence region for the parameters of the linear model, A-optimum design minimizes the sum (or average) of the variances of the parameter estimates, E-criterion reduces the variance of each individual parameter estimate and T-criterion is one that has not enjoyed much use because of the linearity aspect of T-criterion. This study considers the already existing twenty four points three dimensional specific rotatable design of order two. The information matrices C1, for this design is obtained from the moment matrix M, for the second order model for three factors using the relation C=(K1M-1K)-1, where M=1/N(X1X), is the moment matrix, K is the coefficient matrix of the parameter sub system of interest. Our parameter system of interest is that of the linear and pure quadratic factors only. The optimality criteria for the design with the corresponding information matrix C1, is determined as A-optimal.}, year = {2020} }
TY - JOUR T1 - Calculus Optimum Values Optimality Criteria for Twenty Four Points Specific Second Order Rotatable Design in Three Dimensions AU - Kiplagat Nicholas Kipkosgei AU - Mutiso John Muindi AU - Rambaei Keny Silver Jeptoo Y1 - 2020/12/22 PY - 2020 N1 - https://doi.org/10.11648/j.ajtas.20200906.16 DO - 10.11648/j.ajtas.20200906.16 T2 - American Journal of Theoretical and Applied Statistics JF - American Journal of Theoretical and Applied Statistics JO - American Journal of Theoretical and Applied Statistics SP - 306 EP - 311 PB - Science Publishing Group SN - 2326-9006 UR - https://doi.org/10.11648/j.ajtas.20200906.16 AB - This study uses the existing second order rotatable design to obtain optimum design based on the known classical optimality criteria that is the determinant criterion, the average-variance criterion, the smallest-Eigen value criterion and the trace criterion. These criteria measure the desirability of a design, D-optimum design minimizes the content of the ellipsoidal confidence region for the parameters of the linear model, A-optimum design minimizes the sum (or average) of the variances of the parameter estimates, E-criterion reduces the variance of each individual parameter estimate and T-criterion is one that has not enjoyed much use because of the linearity aspect of T-criterion. This study considers the already existing twenty four points three dimensional specific rotatable design of order two. The information matrices C1, for this design is obtained from the moment matrix M, for the second order model for three factors using the relation C=(K1M-1K)-1, where M=1/N(X1X), is the moment matrix, K is the coefficient matrix of the parameter sub system of interest. Our parameter system of interest is that of the linear and pure quadratic factors only. The optimality criteria for the design with the corresponding information matrix C1, is determined as A-optimal. VL - 9 IS - 6 ER -