Dr. Nor Aishah binti Ahad  

Quantitative Sciences,
UUM College of Arts and Sciences,
Universiti Utara Malaysia.

aishah@uum.edu.my 04-9286306 Name in APA format : Ahad, N.A.

ACADEMIC QUALIFICATION

1 2012, PhD Statistik, USM, Universiti Sains Malaysia
2 2002, Master of Science Statistik Gunaan, UPM, Universiti Putra Malaysia
3 2000, Bachelor of Science Statistik, UKM, Universiti Kebangsaan Malaysia

AWARDS & RECOGNITIONS

1 Reviewer for Journal Article, Journal Communications in Statistics  Theory and Methods, 2017, Antarabangsa
2 Reviewer for Journal Article, Journal of Science & Technology (JST), 2016, Kebangsaan
3 Reviewer for Journal Article, Ain Shams Engineering Journal, 2016, Antarabangsa
4 Member on the Editorial Board, Advances in Higher Education, Universe Scientific Publishing, 2016, Antarabangsa
5 Anugerah Penerbitan Terbaik Pusat Pengajian Sains Kuantitatif, Pusat Pengajian Sains Kuantitatif, 2012, Universiti
6 Reviewer for Journal Article, Mathematical Science Letter, 2012, Antarabangsa

OVERVIEW

I am a statistic lecturer at School of Quantitative Sciences. My interest are in robust statistic, inferential statistic, statistical modeling and nonparametric. My previous works investigate the performance and application of various statistical analysis procedures. I am interested in developing robust statistical tests to cases of univariate analysis as an alternative to the classical parametric and nonparametric procedures for comparing groups. Many of my works involve simulation data, but real data analysis also of interest. I am also interested in other areas i.e. quality control and multivariate analysis.

RESEARCH AREA

Statistical Inferences
Statistical Modelling
Other Applied Statistics n.e.c.

AREA OF EXPERTISE

Robust statistic
Inferential statistic
Statistical modeling

ARTICLE IN ACADEMIC JOURNAL

1 Ahad, N.A. (2011). Central Limit Theorem in a Skewed Leptokurtic Distribution. Jurnal Sains dan Matematik. 3(1), 26 - 33.
2 Ahad, N.A., & Syed Yahaya, S.S. (2011). Comparative Performance of Pseudo-Median Procedure, Welch’s Test and Mann-Whitney-Wilcoxon at Specific Pairing. modern applied science. 5(5), 131 - 139.
3 Ahad, N.A., & Syed Yahaya, S.S. (2011). Type I error rates of the two-sample pseudo-median procedure. Journal of Modern Applied Statistical Methods. 10(2), 418 - 423.
4 Ahad, N.A., & Syed Yahaya, S.S. (2011). Hodges-Lehmann as the estimator of pseudo-median.. Science & Arts Intellectual Series. 2(1), 26 - 29.
5 Ahad, N.A., & Syed Yahaya, S.S. (2012). Performance of two-samples pseudo-median procedure. SAINS MALAYSIANA . 41(9), 1149 - 1154.
6 Ahad, N.A., & Abdullah, S. (2012). Relative power performance of t-test and bootstrap procedure for two-sample. Pertanika Journal of Science & Technology. 20(1), 43 - 52.
7 Ahad, N.A., & Yatim, B. (2018). Bootstrapping and Permutational Method in Hypothesis Testing. ESTEEM Academic Journal. 14(Special Issue), 102 - 110.
8 Ahad, N.A., Abdullah, S., Syed Yahaya, S.S., & Yusof, N. (2018). Robust Correlation Procedure via Sn Estimator. JOURNAL OF TELECOMMUNICATION, ELECTRONIC AND COMPUTER ENGINEERING (JTEC). 10(1-10), 115 - 118.
9 Ahad, N.A., & Syed Yahaya, S.S. (2018). Modified One-Step M-Estimator with Robust Scale Estimator for Multivariate Data. Journal of Engineering and Applied Sciences. 13(24), 10396 - 10400.
10 Ahad, N.A. (2019). Modification of ANOVA with Trimmed Mean. Malaysian Journal of Social Sciences and Humanities. 4(4), 109 - 118.
11 Ahad, N.A. (2011). Sensitivity of Normality Tests to Non-normal Data. SAINS MALAYSIANA . 40(6), 637 - 641.
12 Ahad, N.A., & Syed Yahaya, S.S. (2013). New Procedure in Testing Differences Between Two Groups. Applied Mathematics & Information Sciences. Special Issue(), 397 - 401.

PAPERS IN CONFERENCE PROCEEDING

1 Ahad, N.A., & Syed Yahaya, S.S. (2014). The selection criteria in determining the robustness of t-test.. Proceeding of The 3rd International Conference on Mathematical Sciences. 1602(), 1112 - 1117.
2 Ahad, N.A., & Syed Yahaya, S.S. (2014). Sensitivity Analysis of Welch’s t-Test. AIP Conference Proceedings 1605. 1605(), 888 - 893.
3 Syed Yahaya, S.S., & Ahad, N.A. (2014). S1 Statistic with Median Based Location Measure. Proceedings of the 1st Innovation and Analytics Conference and Exhibition. 1(), 95 - 100.
4 Ahad, N.A., Syed Yahaya, S.S., Md Yusof, Z, NO_INITIAL, & Abdullah, S. (2014). Performance of the Modified Wilcoxon Signed Rank Test. Proceedings of the 3rd International Conference on Quantitative Sciences and Its Applications. 1635(), 690 - 694.
5 Ahad, N.A., & Syed Yahaya, S.S. (2010). Power rates of the two-sample pseudo-median procedure. Proceeding of the 2nd International Conference on Quantitative Sciences and Its Applications. 1(), 161 - 166.
6 Ahad, N.A., & Syed Yahaya, S.S. (2015). Robustness of S1 with Hodges-Lehmann. Proceedings of the 2nd Innovation and Analytic Conference & Exhibition. 1691(), 00 - 00.
7 Abdul Hamid, M.S., Ahad, N.A., Mohd Jamil, J., Zulkifli, M., & Md Yusof, Z (2015). An Application of Importance Satisfaction Analysis (ISA)Method in Improving the Internship Programme for Malaysia Higher Learning Institution. Proceedings of the 2nd Innovation and Analytic Conference & Exhibition. 1691(), 00 - 00.
8 Syed Yahaya, S.S., & Ahad, N.A. (2015). S1 statistic with Hodges-Lehmann in two groups case for skewed distribution. Proceedings of the 2nd Innovation and Analytic Conference & Exhibition. 1691(), 00 - 00.
9 Ahad, N.A., & Syed Yahaya, S.S. (2012). Performance of pseudo-median procedure as compared to t-test and Mann-Whitney-Wilcoxon test. Proceedings of the 1st International Conference on Decision Modeling. (), 127 - 130.
10 Ahad, N.A., & Syed Yahaya, S.S. (2012). New method for comparing differences between groups in real data application. Proceedings of the 2nd International Conference on Arts, Social Sciences & Technology . (), 1 - 11.
11 Ahad, N.A., & Syed Yahaya, S.S. (2016). Robustness of S1 Statististic with Hodges-Lehmann for Skewed Distributions. THE 4TH INTERNATIONAL CONFERENCE ON QUANTITATIVE SCIENCES AND ITS APPLICATIONS (ICOQSIA 2016). 1782(), 1 - 6.
12 Ahad, N.A. (2016). The Performance of Robust Correlation Coefficient under Contaminated Bivariate Data. THE 4TH INTERNATIONAL CONFERENCE ON QUANTITATIVE SCIENCES AND ITS APPLICATIONS (ICOQSIA 2016). 1782(), 00171 - 00175.
13 Abdullah, S., Ahad, N.A., Yusof, N., & Syed Yahaya, S.S. (2016). The Performance of Robust Correlation Coefficient under Contaminated Bivariate Data. THE 4TH INTERNATIONAL CONFERENCE ON QUANTITATIVE SCIENCES AND ITS APPLICATIONS (ICOQSIA 2016). 1782(), 00171 - 00.
14 Ahad, N.A., Abdullah, S., Syed Yahaya, S.S., & Yusof, N. (2017). Median based robust correlation coefficient. AIP Conference Proceeding 1905, 050047 (2017). 1905(), 1 - 5.
15 Abdullah, S., & Ahad, N.A. (2017). Robust Correlation Coefficient Based on Qn Estimator. AIP Conference Proceeding 1905, 050047 (2017). 1905(), 1 - 5.
16 Abdul Hamid, M.S., Ahad, N.A., Mohd Jamil, J., Zulkifli, M., & Md Yusof, Z (2017). AN APPLICATION OF QUALITY FUNCTION DEPLOYMENT (QFD) TO IMPROVE INTERNSHIP PROGRAMME. THE 2ND INTERNATIONAL CONFERENCE ON COMMUNICATION, MEDIA, INFORMATION TECHNOLOGY, EDUCATION, ENVIRONMENT, TOURISM, ECONOMICS, POLITICS, ARTS AND HERITAGE.. 1(), 732 - 739.
17 Ahad, N.A., & Mohd. Alipiah , F. (2019). Applicability of G-Test in Analyzing Categorical Variables . AIP Conference Proceedings 2138 THE 4TH INNOVATION AND ANALYTICS CONFERENCE & EXHIBITION (IACE 2019). 2138(), 050003-1 - 050003-6.
18 Haron, N.H., Ahad, N.A., & Mahat, N.I. (2019). Distance-based regression for non-normal data . AIP Conference Proceedings 2138 THE 4TH INNOVATION AND ANALYTICS CONFERENCE & EXHIBITION (IACE 2019). 2138(), 050013-1 - 050013-5.
19 Ahad, N.A. (2013). A SAS program to assess the sensitivity of normality tests on non-normal data.. Proceeding of Simposium Kebangsaan Sains Matematik Ke-20. 1522(), 1269 - 1275.

BOOKS

NO DATA

CHAPTER IN BOOKS

1
Ahad, N.A., Syed Yahaya, S.S., Abdullah, S., NO_INITIAL, & Md Yusof, Z (2015). Type I error of the Modified Wilcoxon Signed Rank Test Under Leptokurtic Distribution, Quest for Research Excellence On Computing, Mathematics and Statistics (pp. 189 - 198), UiTM Kedah:Faculty of Computer & Mathematical Sciences, UiTM Kedah
2
Ahad, N.A., & Syed Yahaya, S.S. (2016). Pseudo-Median Based Procedure for Comparing Two Independent Groups, Scientific Investigation on Univariate Quantitative Methods (pp. 1 - 23), Universiti Utara Malaysia, UUM:UUM Press

PAST & CURRENT RESEARCHS

1 NOVEL RULES FOR ROBUST LINEAR DISCRIMINANT USING DISTANCE BASED AND COORDINATE-WISE ESTIMATORS IN HANDLING NON-NORMALITY. (2019), Leader, KPT
2 Novel Robust Memory-Type and Synthetic Variable Control Charts (2016), Member, KPT
3 ROBUSTIFYING PEARSON'S CORRELATION COEFFICIENT BY USING HIGHEST BREAKDOWN POINT ESTIMATORS (2015), Leader, UNIVERSITI
4 A New Robust Statistic For Testing The Equality Of Central Tendency Measures For Skewed Distributions. (2012), Leader, UNIVERSITI
5 Constructiong A New Quality Function Deployment (QFD) Method In Improving Internship Programme For Malaysia Higher Learning Institutions (2012), Member, UNIVERSITI
6 Modified Wilcoxon Procedure For Dependent Group (2012), Leader, UNIVERSITI
7 TRAFFIC MODELING OF WEB APPLICATION (2007), Member, KPT
8 THE ALLOCATION OF COLLEGE FUNDS TO STUDENTS' ACTIVITIES USING INTEGER PROGRAMMING (2003), Leader, KPT
9 KAJIAN PASARAN GRADUAN PROGRAM STATISTIK INDUSTRI DALAM SEKTOR KEWANGAN DAN PERBANKAN DI MALAYSIA (2003), Member, KPT

UNDERGRADUATE

NoCourse CodeCourse Name
1 SQQS3122INDUSTRIAL STATISTICS PROJECT I
2 SQQS3153NON PARAMETRIC METHODS
3 SQQS1013ELEMENTARY STATISTICS
4 SQQS3134INDUSTRIAL STATISTICS PROJECT II
5 SQSX4912PRACTICUM
6 QS1013ELEMENTARY STATISTICS
7 SDG1021THINKING SKILL
8 SQQS2013APPLIED STATISTICS
9 QS2123MULTIPLE REGRESSION ANALYSIS IN BUSINESS
10 TS1013INTRODUCTION TO STATISTICS
11 QQS2013APPLIED STATISTICS
12 SQQS1043PROBABILITY AND STATISTICS
13 EEP2032LIVING IN THE MULTI-CULTURAL SOCIETY
14 SQSX3912PRACTICUM
15 QQS2023BUSINESS AND MANAGERIAL STATISTICS
16 QS3153SAMPLING FOR DECISION MAKING
17 SDG1011HIGH TOUCH COMMUNICATION
18 SQQS2063INFERENTIAL STATISTICS
19 QQS1013ELEMENTARY STATISTICS
20 EEP1032PERSONAL DEVELOPMENT AND CHARACTER BUILDING
21 SQQS3073RESEARCH METHODOLOGY
22 QQS2043MULTIPLE REGRESSION ANALYSIS IN BUSINESS
23 AQ0023FUNDAMENTAL OF MATHEMATICS 2

POSTGRADUATE

NO DATA

NoYearTitleMembershipCost (RM)FunderLevelStatus
1 2013Analisis data keputusan peperiksaan akhir semester a122Member2,000.00GovernmentNationalCompleted
2 2013Analisis data keputusan peperiksaan akhir semester a121Member8,100.00GovernmentNationalCompleted
3 2012Hypothesis testing and sampling structural equation modeling (sem)Leader0.00GovernmentNationalCompleted

NOTES

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2. Your Publication information is automatically taken from the Sistem Penerbitan. Please update your Publication information through portal.uum.edu.my, click     ‘Academic’, then click ‘Publication/Penerbitan’. You are advised to update your Publication regularly to allow others to be able to know your recent     publications.
3. Your Research and Consultation information is automatically taken from RaIIS. Please take note information on Research is automatically taken from RaIIS.     Please contact RIMC (SURAYA : 4776), (RAIS : 4781) for any updates or discrepancies.
4. Your Teaching and Supervision information is automatically taken from ASIS/GAIS. Please contact AR / administration staf at your School for any updates     discrepancies.

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