...Final Project You are required to complete a final project. Please consult the Course Calendar for the due date. Project Description Statistics is about more than calculations. It is about turning data into information and using this information to understand the population. A statistician will be asked to help solve real world problems by designing a study, collecting data, analyzing the data, and writing up the results. As a final project, you will be asked to do something similar. Though the design and data collection will be done for you, you will be asked to analyze the data using the appropriate tests (ensuring the data are distributed normally) and write up the results, using statistical evidence to support your findings. Lastly, you will be asked to include recommendations, that is, apply the results to solve the real world problem. In your paper, explain why you chose each statistical test, figure, or procedure. The problem: Due to financial hardship, the Nyke shoe company feels they only need to make one size of shoes, regardless of gender or height. They have collected data on gender, shoe size, and height and have asked you to tell them if they can change their business model to include only one of shoes – regardless of height or gender of the wearer. In no more 5-10 pages (including figures), explain your recommendations, using statistical evidence to support your findings. The data found are below: Show Size Height Gender 5.00 63.00 Female 7.50...
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...Email: dklein99@terpmail.umd.edu Class Information Classroom: Van Munching Hall, Room 1330 Meeting Times: 10:00 a.m. - 1:10 p.m. Meeting Dates: June 2 - 5 (Monday – Thursday) June 9 - 12 (Monday – Thursday) June 16 – 19 (Monday – Thursday) Information regarding official university closings and delays can be found at the campus website or by calling the weather emergency phone line (301-405-7669). If a class is cancelled, the dates on the Course Outline will be changed to reflect this. Students will be notified of such changes by an email from me. Please refer to the inclement weather policy on page 3. Required Course Materials Text: Basic Statistical Ideas for Managers, 2nd ed, D. Hildebrand, R. Ott and J. Gray, Duxbury Press (Thompson-Brooks/Cole), 2005, ISBN 0-534-37805-6. The text comes with a CD-ROM containing an Excel Add-in and Data Sets. If your text does not have the CD, that is okay since I can post the data sets and we will not be using Excel. Optional Supplement Student Solutions Manual for Hildebrand, Ott and Gray, 2005, ISBN 0-534-38291-6. It is not necessary to buy the Student Solutions manual. It contains detailed solutions to some of the exercises in the book. This resource is for those students who want to look at detailed solutions to exercises not covered in class or assigned as HW. Whether or not a...
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...* Before the redesign project, what factors, processes and behaviors led to the planning problems? Lack of consensus on forecasts that the departments of sales, marketing, finance and operation all had their own forecasts and they did not trust each other’s numbers. The lack of formalized process and communication of forecasting was the key reason underlying. Also, the data most relevant to forecasting was often not accurate or inusable and Leitax had no built-in system to monitor demand planning. Life cycle of certain products was often extended in order to push sales to resellers. Sell-in rather than sell-through was relied upon. The other aspect is the industry aspect that digital camera is a rapidly changing industry that new products had to be introduced frequently. These further distorted the forecasting and demand management issue. * What are the successful elements of the consensus forecasting process that should be maintained in the organization? Key player such as Fowler who has the capacity to influence the senior leadership in Leitax at the same time Fowler has what it takes to be a successful supply chain professional, the good technical know-how and understanding of this industry and the product. Before Fowler got started, he obtained buy-in from different functional groups. There would be 3 forecasts made, one is the top-down forecast from PPS focused on macro economic demand for the product; the other is the bottom-up forecast from sales...
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...analyzing a series of data, it was feasible to understand the trends in the wages. According to research analysis prepared by Consad Research Corporation, there is a difference. In pay directly associated with gender that dates back to three decades (Consad Research Corporation, 2011). Confidence Interval In addition to the Consad Research, information includes addressing data analysis using descriptive statistics, which included central tendency, dispersion, and skew data and statistical data using graphic and tabular techniques, was provided. A confidence interval was also computed to support the team’s conclusion. From our research the confidence interval is M 73.0 – 4.8 = 69.1 < M 73.9 > 73.9+ 4.8= 78.7Females earn 73.9% + 4.87 of male wages. The formulated problem statement supports a series of data collected from comparable scenarios. When we used statiscal analysis to project or reflect the earnings of women and men, we found no evidence on which we could base a prediction for a closing (or widening) wage gap. In essence, the findings support for the two lines to remain parallel, although the 90% confidence intervals (the range within which we are 90% certain the actual future earnings will fall) do not overlap. Final Conclusion Businesses where they proudly announce their motto, or mission state confidently that the wage gap does not reflect discrimination. However; studies suggest...
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...REVIEW OF A JOURNAL ARTICLE: AN EXAMPLE (Unfortunately, I don’t have the name of the reviewer.) o Bibliography Author, F. (1776). Effects of classroom testing by microcomputer. Journal of ABCDE, 99(9), 9-19. o Problem Microcomputers are being used for a variety of purposes, but research about their instructional effectiveness lags behind adoption rates for the technology. Further, there is a limited research base about the effects of microcomputers in vocational agriculture on learning in the affective, cognitive, and psychomotor domains. The research base is even more shallow when effects of testing students by computer technology are explored. Comments: The problem statements agreed with the title and seemed to be of educational significance. The problem was not clearly visible to the average reader, and it required several readings to establish why the researchers felt this study needed to be done. It was limited to the researchers’ capabilities and resources. o Review of Literature o The author cited no clear review of literature; however, several appropriate references were used in the introduction section. These statements contributed to the overall understanding of the subject and to the reasoning for establishing the problem statement. Suggested section titles would have been: (1) competencies vocational education teachers need to use computer technology effectively; (2) effects of microcomputers on learning; and (3) effects of testing students by...
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...problems, describe them numerically and to provide intelligible solutions by data collection and inferential principles. Course pre-requisites Intermediate statistics Attendance Policy: Late arrivals are highly discouraged. Any student coming late to a class late by 5 minutes after the scheduled start time will be marked as absent for the day. The teacher reserves discretion, however, to allow or disallow any student, to sit in the class in case of late arrivals. Attendance is not be entertained once the attendance register is closed. Class Project Students will be divided in groups for a class project. Each group will have to nominate a group leader. The details of the project will be made available to the group leader. Class Presentations Each student will have to make at least one individual presentation and one group presentation in the class. The group presentation will be on the project explained earlier. The individual presentations will start after first two weeks. Teaching Methodology Students are expected to come prepared to the classes and to keep a proactive mode of study of the topics to be discussed in classes. Class presentations will be made by the teacher to build conceptual framework of the subject along with interactive discussions with the students. Students are encouraged to participate...
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...------------------------------------------------- Archived Voice ------------------------------------------------- A Thesis Presented to the Faculty of the College of Computer Studies Philippine Christian University – Manila City Campus ------------------------------------------------- In Partial Fulfillment of the Requirements for the degree of ASSOCIATE IN COMPUTER TECHNOLOGY ------------------------------------------------- Submitted by: Martin Joseph D. Abao October 2012 THESIS ABSTRACT ------------------------------------------------- Title : Archived Voice Proponent : Martin Joseph D. Abao Year : October 2012 Course : Associate in Computer Technology ------------------------------------------------- Adviser : ------------------------------------------------- The study answers the demographic profile of the students, disabled people, programmers, professionals, computer-literate and foreigners/linguistic in terms of year level, company, course, position, language spoken and their age; the problems encountered by the respondents in terms of: Making documents and paper works, Understanding the application’s environment; the benefits and opportunities of the respondents by using the Archived Voice like changing of the application’s environment into different languages, making documents, and paper works in an easy way, time and speed constraints in using the application; and the evaluation of the respondents about the...
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...THE RELATIONSHIP BETWEEN MARS MODEL (MOTIVATION, ABILITY, ROLE PERCEPTIONS, SITUATIONAL FACTORS) AND EMPLOYEES' PERFORMANCE AT THE WORKPLACE LIEW MAY THIN This project is submitted in partial fulfilment of the requirements for a Bachelor of Science with Honours Human Resource Development Faculty of Cognitive Sciences and Human Development UNIVERSITI MALAYSIA SARAWAK 2011 ACKNOWLEDGEMENT Most of all, I would like to express my gratitude to my supervisors, Mr. Abang Ekhsan Abang Othman for his guidance and great effort in assisting me throughout all the way of completion of this Final Year Project. I would like to thank him for his generosity in sharing knowledge and spending time to explain and discussed the problems that I had faced. In addition, I appreciate his guidance, advice and encouragement that facilitated the completion of this study. Also, I would like to thank my evaluators, Mr Philip Nuli Anding and Miss Agatha Lamentan Ak Muda for the Final Year Project presentation for their advices and comments which allow me to identify where the problem lies. A big thank you is also dedicated to one of the hotels in Kuching area for giving me the opportunity, permission and cooperation to conduct the study. Special thanks I dedicated to Mrs Susan Kon, manager of the hotel and Miss Nurul for her invaluable contributions and assistance throughout the distribution and collection of the questionnaires. Never forget to express my thankfulness to...
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...[pic] A STATISTICAL RESEARCH PAPER Submitted to Mr. Marcelo C. Mendoza In partial Fulfillment to the requirements In Math 22 Submitted by GROUP: PLUS ONE Leader: MARK ANTHONY QUIJANO Co-Leader: ROBERT SANTOS Analyzer: MICHAEL CATABRAN The Race for 2010 Presidential Election Rationale: As we approach the May 2010 election. Our group conducted a quick survey to test the Filipinos’ maturity and integrity in choosing their candidates in our democratic institution. Thus, this project will try to determine the bet of some of our fellow countrymen for the presidential race in the May 2010 election. Statement of the Problem: The aim of this first term statistical research project is to find out who is JRU students’ choice for president in 2010. Specifically, it will try to find the following: 1] The profile of the respondents according to a] gender b] age 2] JRU students’ choice for president 3] Male JRU students’ choice for president 4] Female JRU students’ choice for president 5] JRU students’ perception of their candidates’ chance of winning the presidency in the 2010 election 6] Male JRU students’ perception of their candidate’s chance of winning the presidency in the 2010 election 7] Female JRU students’ perception of their candidate’s chance of winning the presidency in the 2010 election 8] JRU students’ degree of optimism that their choice...
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...COMPARING PERCEPTIONS OF THE SYSTEMS ANALYSIS AND DESIGN COURSE BRANDI N. GUIDRY University of Louisiana at Lafayette Lafayette, LA 70504 DAVID P. STEVENS University of Louisiana at Lafayette Lafayette, LA 70504 ABSTRACT Information Systems (IS) practitioners and educators have equal interest in the content of the Systems Analysis and Design Course (“SAD”). Previous research has examined instructors’ perceptions regarding the skills and topics that are most important in the teaching of the SAD course and the class time devoted to each. A similar assessment evaluated SAD course content from a practitioner perspective. Both studies used entropy calculations. A comparison of these studies is presented in this paper. For traditional topics, the group (either faculty or practitioner) with greater agreement believes the topic to be deserving of less class time. For structured and object-oriented topics, the group with the greater agreement also believes the topic to be of greater importance. This analysis demonstrates that practitioners and academics agree on approximately 40% of the SAD skills and knowledge areas. Keywords: Systems analysis and design, Structured analysis, Object-oriented analysis, Management Information Systems curricula, Entropy INTRODUCTION It is important that an education in Management Information Systems (MIS) is reflective of practices and techniques that are currently used in industry. Given the pace of technological innovation, there are ever-changing...
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...STAT 346/446 - A computer is needed on which the R software environment can be installed (recent Mac, Windows, or Linux computers are sufficient).We will use the R for illustrating concepts. And students will need to use R to complete some of their projects. It can be downloaded at http://cran.r-project.org. Please come and see me when questions arise. Attendance is mandatory. Topics covered in STAT 346/446, EPBI 482 Chapter 5 – Properties of a Random Sample Order Statistics Distributions of some sample statistics Definitions of chi-square, t and F distributions Large sample methods Convergence in probability Convergence in law Continuity Theorem for mgfs Major Theorems WLLN CLT Continuity Theorem Corollaries Delta Method Chapter 7 – Point Estimation Method of Moments Maximum Likelihood Estimation Transformation Property of MLE Comparing statistical procedures Risk function Inadmissibility and admissibility Mean squared error Properties of Estimators Unbiasedness Consistency Mean-squared error consistency Sufficiency (CH 6) Definition Factorization Theorem Minimal SS Finding a SS in exponential families Search for the MVUE Rao-Blackwell Theorem Completeness Lehmann-Scheffe Location and scale invariance Location and scale parameters Cramer-Rao lower bound Chapter 9 - Interval Estimation Pivotal Method for finding a confidence interval Method for finding the “best” confidence interval Large sample confidence intervals ...
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...INTRODUCTION Welcome to Research Rundowns, a blog intended to simplify research methods in educational settings. I hope this site can serve as a quick, practical, and more importantly, relevant resource on how to read, conduct, and write research. The contents are an expansion and revision of my class materials, intended for use as a refresher or as a free introductory research methods course. Topics are organized into five main sections, with subsections (in parentheses): * Introduction (INTRO)–a brief overview of educational research methods (3) * Quantitative Methods (QUANT)–descriptive and inferential statistics (5) * Qualitative Methods (QUAL)–descriptive and thematic analysis (2) * Mixed Methods (MIXED)–integrated, synthesis, and multi-method approaches (1) * Research Writing (WRITING)–literature review and research report guides (5) Most subsection contains a non-technical description of the topic, a how-to interpret guide, a how-to set-up and analyze guide using free online calculators or Excel, and a wording results guide. All materials are available for general use, following the Creative Commons License. Introduction (INTRO)–a brief overview of educational research methods 1. What is Educational Research? (uploaded 7.17.09) 2. Writing Research Questions (uploaded 7.20.09) 3. Experimental Design (uploaded 7.20.09) ------------------------------------------------- Experimental Design The basic idea of experimental design involves...
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...2. Descriptive Statistics Once the Data collection process has been completed the researcher must then try to make sense of the information collected. The data at this stage will be in its raw form and will generally not be suitable for presentation or interpretation The purpose of descriptive statistics, as the name suggests, is to describe a set of data. They are used to provide manageable summaries of data sets. They are the simplest and most widely used set of statistics and in many data analysis projects they will provide all the information required. There are many techniques available for describing a set of data. In this course we will look at three groups of univariate statistics, namely i) Frequency Distributions (ii) Measures of Central Tendency (iii) Measures of Dispersion We will also examine three bivariate techniques i) Crosstabs (ii) Tables of Means (iii) Correlation 2.1 Frequency Distributions - The frequency of a variable value is the number of times that value occurs in a set of data - A frequency distribution is simply a table of frequencies for all possible values of the variable. - They are relatively simple to construct and interpret; yet they still provide a very powerful tool for examining data. Example 2.1 2.1 Frequency Distribution of the number of cars owned by 500 households |Number of Cars |Frequency | |0 |70 ...
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...|Institute of Education Sciences |Mathematica Policy Research, Inc. | |U.S. Department of Education |P.O. Box 2393 | |80 F Street NW |Princeton, NJ 08543-2393 | |Washington, DC 20208 |Telephone: (609) 799-3535 | | |Facsimile: (609) 799-0005 | |Project Officer: |...
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...Journal Adejumo, G. O. (2011) Impact of Family Type on Involvement of Adolescents in Pre-Marital Sex International Journal of Psychology and Counselling. Vol.3 (1). Pp.15-19 http://www.academicjournals.org/ijpc/abstracts. Abstract This study examined the impact of home type on involvement of in-school adolescents in premarital sex in Lagos metropolis, Nigeria. This study adopted a survey research design. Three hundred and sixty-eight students from four secondary schools were randomly selected, 128 or 47.8% were males and 148 or 53% were females. Their ages range from 16-19years with the mean of 18.24years. Only 186 or 69% have had sexual intercourse and 94 of them had only one sex partner while 92 had more than one sex partner. Two research instruments were developed for this study-Attitude towards Pre marital Sex Scale (ATPSS) and Parent Involvement Questionnaire (PIQ). The findings revealed a significant effect of home type in prediction of adolescents’ involvement in premarital sex at r=.569, r2 =.347, f (1,218) = 56.47 and <.05 significant level. There was a significant difference significant difference in involvement in premarital sex between adolescents from single parent and intact homes at X2-observed=22.46, 1degree of freedom and p <0.05. It was concluded that parental involvement is paramount in adolescents’ premarital sexual behaviour. It was recommended that government, religious bodies and individuals should uphold the sacred institution of marriage for wellbeing...
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