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Articles by H.I. Okagbue
Total Records ( 8 ) for H.I. Okagbue
  H.I. Okagbue , Z.O. Omogbadegun , F.A. Olajide and A.A. Opanuga
  This study suggested different ways the application of Sudoku can be used in defending information systems against unauthorized access, abuse, spy or disclosure. This research showed how some simple mathematical and logical manipulations of Sudoku can generate passwords or one term passwords OTP. The enormous benefits of the research and possible applications are discussed.
  H.I. Okagbue , M.O. Adamu , S.O. Edeki and A.A. Opanuga
  Mean has been traditionally used in the computation of the interactions in moderated linear regression. This research extended to the use of medium, mode, trimmed mean and some M-estimators which gave almost the same results when compared with mean. The values of R2, MSR and F were the same for all the estimators. Also, simulated results vary slightly with the theoretical results due to the effects of outliers as a result of random numbers. The survey data was masked because it is a subset of an ongoing research work.
  H.I. Okagbue , M.O. Adamu , A.A. Opanuga , Z.O. Omogbadegun and E.C.M. Obasi
  The 668 students from 3 secondary schools were randomly selected and were given different Sudoku of 3 levels of difficulty namely: easy, medium and hard. All of them were given the same time to provide the different solutions. Hu used the same level of Sudoku in their research but this research extended to different levels with the aim of testing the popularity of the game among the students and gender differences in solving Sudoku. Findings showed that the game is more popular among the male and more female were unable to solve the game. The χ2-test statistic of the 3 tables showed that there is no association between gender and the ability to solve Sudoku game. In other to get a valid conclusion, the information from the 3 tables are combined using the methods prescribed by Radhakrishna and Everitt which showed that there is association between gender and the ability to solve Sudoku. Conclusion without combining the contingency tables would have produced an incorrect analysis and wrong interpretation.
  P.E. Oguntunde , O.S. Balogun , H.I. Okagbue and S.A. Bishop
  A three parameter probability model, the so called Weibull-exponential distribution was proposed using the Weibull Generalized family of distributions. Some important models in the literature were found to be sub models of the new model. Explicit expressions for some of its basic mathematical properties like moments, moment generating function, reliability analysis, limiting behavior and order statistics were derived. The method of maximum likelihood estimation was proposed in estimating its parameters and real life applications were provided to illustrate its flexibility and potentiality over the exponential distribution.
  A.A. Opanuga , O.O. Agboola and H.I. Okagbue
  This study applies the Differential Transform Method (DTM) to obtain the approximate solution of multipoint boundary value problems. Two examples are solved to illustrate the efficiency of the method. Comparison with the solution obtained by Adomian Decomposition Method revealed that the DTM is an excellent method for this type of problems.
  H.I. Okagbue , M.O. Adamu , P.E. Oguntunde and A.A. Opanuga
  In this study, we consider a 9x9 post-filled Sudoku puzzle as an example of a three factorial design without blocking. Because of the rigidity of Sudoku, the all main effects and two factors interactions are all statistically insignificant. The three factor interaction is can be statistically significant or not. The use of column or row additions in the computation of the 3-factor interactions of a chosen Sudoku yields complementary results. If the rows addition gives an interaction effect that is statistically significant then the column result will be insignificant and vice versa. The treatment effects of the 3-factor effect of a post-filled Sudoku depend on whether the column or row sums are used in the computation of the interaction effect.
  S.O. Edeki , H.I. Okagbue , G.O. Akinlabi , A.A. Opanuga and A.S. Osheku
  In this study, the basic moments of the triangular distribution are studied, and the moments of the resulting distribution referred to as a Transformed Triangular Distribution (TTD) are compared with those moments of the U-quadratic distribution based on some suppositions. The results show that the U-quadratic distribution is a proxy for the TTD.
  H.I. Okagbue , M.O. Adamu , S.A. Iyase and E.A. Owoloko
  There are no much sex differences in the distribution of challenges faced by commuters using Bus Rapid Transit (BRT) as observed from this survey. Internal consistencies tests showed that the responses are randomized. Price charged, non-availability of buses and security in the buses are paramount challenges faced by the commuters. The moderation results showed that the commuters’ satisfaction in patronizing the BRT are mostly affected by security of the buses, reduced commuting time, attitude of the staffs, the attitude of the staff as seen in the behavior of the drivers, the prices charged as it affect the income of the commuters and the present available routes. Adequate security at the buses and bus stops, availability of more buses, downward review of the prices charged and increase in the available routes are some recommendations that can help to address the challenges faced by commuters using BRT especially as a means of conveying them to their workplaces.
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