...TI-84 Plus TI-84 Plus Silver Edition Guidebook Important Information Texas Instruments makes no warranty, either express or implied, including but not limited to any implied warranties of merchantability and fitness for a particular purpose, regarding any programs or book materials and makes such materials available solely on an "as-is" basis. In no event shall Texas Instruments be liable to anyone for special, collateral, incidental, or consequential damages in connection with or arising out of the purchase or use of these materials, and the sole and exclusive liability of Texas Instruments, regardless of the form of action, shall not exceed the purchase price of this product. Moreover, Texas Instruments shall not be liable for any claim of any kind whatsoever against the use of these materials by any other party. © 2005 Texas Instruments Incorporated Windows and Macintosh are trademarks of their respective owners. ii USA FCC Information Concerning Radio Frequency Interference This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference...
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...Uses of Statistical Information in the Workplace HCS 438 November 9, 2011 Uses of Statistical Information in the Workplace The collection, interpretation, analysis and presentation of data can be used in the workplace (Bennett, Briggs, & Triola, 2009). Predictions are made based on the data collected. The workplace is a healthcare organization, such as on a post-partum unit provide opportunities to collect, organize, observe and interpret information regarding this population. The purpose of this paper is to determine which methods of statistics are used as a measuring tool and what levels of measurements are used or could be used to improve the decision-making process for this organization. Statistics in the Workplace Many areas of the hospital facility use statistics in measurement. How do statistics affect this hospital healthcare facility in women services? One example is measuring nurse/patient ratios based on patient census and acuity. Patient acuity and census determines how many nurses are assigned to each patient based on their acuity. This also ensures patient and personnel safety. Patient satisfaction surveys are performed to improve patient care outcome as measured by HCAHPS (Hospital Consumer Assessment of Healthcare Providers and Systems); these tactics were discovered by the Studer Group. HCAHPS encourages leaders and staff members alike to realize the results are meaningful and that they translate to better, more consistent quality care, which...
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...of the collection, organization, analysis, interpretation and presentation of data.[1][2] It deals with all aspects of data, including the planning of data collection in terms of the design of surveys and experiments.[1] The word statistics, when referring to the scientific discipline, is singular, as in "Statistics is an art."[3] This should not be confused with the word statistic, referring to a quantity (such as mean ormedian) calculated from a set of data,[4] whose plural is statistics ("this statistic seems wrong" or "these statistics are misleading"). More probability density is found the closer one gets to the expected (mean) value in a normal distribution. Statistics used in standardized testing assessment are shown. The scales include standard deviations, cumulative percentages, percentile equivalents, Z-scores, T-scores, standard nines, and percentages in standard nines. Contents [hide] * 1 Scope * 2 History * 3 Overview * 4 Statistical methods * 4.1 Experimental and observational studies * 4.2 Levels of measurement * 4.3 Key terms used in statistics * 4.4 Examples * 5 Specialized disciplines * 6 Statistical computing * 7 Misuse * 8 Statistics applied to mathematics or the arts * 9 See also * 10 References | ------------------------------------------------- Scope[edit] Some consider statistics a mathematical body of science that pertains to the collection, analysis, interpretation or explanation, and presentation of data,[5] while...
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...ERRUPTIONS OF THE OLD FAITHFUL GEYSER 1.0 Literature Review A geyser refers to a hot spring that occasionally due geographical processes and difference in pressure erupts hot water and steam in the air. The Old Faithful Geyser at Yellowstone National Park , Wyoming is one of the most famous geyser in the world. Given the fame of this geyser, it receives visitors from various parts of the world. For convenience of time, the national park service have erected some sign at the site to try help visitors predict the time for the occurrence of the next eruption. The Old Faithful Geyser is not the biggest or most regular geyser in Yellowstone but it is the biggest regular geyser. It has been erupting in the same fashion throughout the recorded history. In fact becoming oneof the most the moststudied geyser in the history. In trying to predict the next eruption time, researchers make use of the duration of the current eruption. The duration is timed from the first heavy surge which lifts water skywards at the start of the eruption until the last small splash above the cone at the end. Previous studies show that, a 2 minute eruption results in an interval of about 55 minutes. There have existed various misconceptions with respect to this geyser; the first being that Old Faithful plays hourly, this misconception came about during the 1870, Washburn expedition where one of the members reported that that the geyser played hourly and so each day there are usually about 21 to 23...
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...not happen) and 1 (100% chance or will happen). The higher the degree of probability, the more likely the event is to happen, or, in a longer series of samples, the greater the number of times such event is expected to happen. These concepts have been given an axiomatic mathematical derivation in probability theory (see probability axioms), which is used widely in such areas of study as mathematics, statistics, finance, gambling, science, artificial intelligence/machine learning and philosophy to, for example, draw inferences about the expected frequency of events. Probability theory is also used to describe the underlying mechanics and regularities of complex systems. Statistics is the study of the collection, organization, analysis, interpretation and presentation of data. It deals with all aspects of data, including the planning of data collection in terms of the design of surveys and experiments. The word statistics, when referring to the scientific discipline, is singular, as in "Statistics is an art."This should not be confused with the word statistic, referring to a quantity (such as mean or median) calculated from a set of data, whose plural is statistics ("this statistic seems wrong" or "these statistics are misleading"). Scope Some consider statistics a mathematical body of science that...
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...Phoenix Recording's Research Report Kenneth Drake, Elizabeth Navarro, Olive Myers-Rose QNT/561 September 7, 2015 Heidi Carty, Ph. D. Phoenix Recording's Research Report Part 1: Formulating the Research Problem The Research Problem Phoenix Recording is a record label for various genres of music. The country music genre is fairly small and represents both male and female country artists. The Vice President noticed that the overall profits for the country artists are extremely low. He has decided to cut the production of music budget for one of the artist. The Vice President has hired an exterior team to provide viable information that would determine the reason for reducing any particular artist’s production budget. Part of the exterior team’s research will involve analyzing YouTube’s view rates for each artist’s hit song for the current year. The independent variable in the research is the gender of the artist and the dependent variable is the number of YouTube views. The team will take a random sample of male and female artists. The team realizes that the variables of male versus female country artists may give the record label an overall view for that genre of music videos being viewed. Research Question Is the difference in the number of YouTube views (DV) based on the gender of the artists (IV)? Hypotheses H0: The difference in YouTube views (DV) is not based on the gender of the artist (IV). H1: The difference in YouTube views...
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...6: Introduction to Hypothesis Testing Significance testing is used to help make a judgment about a claim by addressing the question, Can the observed difference be attributed to chance? We break up significance testing into three (or four) steps: Step A: Null and alternative hypotheses The first step of hypothesis testing is to convert the research question into null and alterative hypotheses. We start with the null hypothesis (H0). The null hypothesis is a claim of “no difference.” The opposing hypothesis is the alternative hypothesis (H1). The alternative hypothesis is a claim of “a difference in the population,” and is the hypothesis the researcher often hopes to bolster. It is important to keep in mind that the null and alternative hypotheses reference population values, and not observed statistics. Step B: Test statistic We calculate a test statistic from the data. There are different types of test statistics. This chapter introduces the one-sample z-statistics. The z statistic will compare the observed sample mean to an expected population mean μ0. Large test statistics indicate data are far from expected, providing evidence against the null hypothesis and in favor of the alternative hypothesis. Step C: p Value and conclusion The test statistic is converted to a conditional probability called a P-value. The P- value answers the question “If the null hypothesis were true, what is the probability of observing the current data or data that is more extreme?” Small p values...
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...Standard deviation http://en.wikipedia.org/wiki/Standard_deviation, From Wikipedia, the free encyclopedia In probability and statistics, the standard deviation of a probability distribution, random variable, or population or multiset of values is a measure of the spread of its values. It is usually denoted with the letter σ (lower case sigma). It is defined as the square root of the variance. To understand standard deviation, keep in mind that variance is the average of the squared differences between data points and the mean. Variance is tabulated in units squared. Standard deviation, being the square root of that quantity, therefore measures the spread of data about the mean, measured in the same units as the data. Said more formally, the standard deviation is the root mean square (RMS) deviation of values from their arithmetic mean. For example, in the population {4, 8}, the mean is 6 and the deviations from mean are {-2, 2}. Those deviations squared are {4, 4} the average of which (the variance) is 4. Therefore, the standard deviation is 2. In this case 100% of the values in the population are at one standard deviation of the mean. The standard deviation is the most common measure of statistical dispersion, measuring how widely spread the values in a data set are. If the data points are close to the mean, then the standard deviation is small. As well, if many data points are far from the mean, then the standard deviation is large. If all the data values are equal, then the...
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...Modeling Qualitative Variable (Dummy Variables) with Regression Modeling values as base and differences Base price: $299.99 MS office and Student 2010: $299.99+$119=$418.99 MS office home and business 2010: $299.99+$199=$498.99 MS office Pro 2010: $299.99+$349=$648.99 Since we must use 1 and 0 to represent yes and no, we can model…Price=299.99+119(X1)+199(X2)+349(X3) If you choose X1: put 1 in the X1 and others 0, If you choose X2: put 1 in the X2 and others 0…. NOTE: Intercept will be the base price. Ex) model the following computers Computer1, base computer with 1 year support $338.99 Computer2, 90 day support $299.99 Answer) 338.99-39(X1)+80(X2) Computer3, 2 year support $418.99 Using averages: if you are purchasing the same type of computer across many dealers, some prices will be higher and some will be lower, therefore we average the prices. Average price = 300+50(option1)+200(option2)-140(option3). Here we have 4 option: base, option1, option2, option3 If there are 5 options, 4 dummy variables would be needed, base, option1, option2, option3, option4. In general, we will model a qualitative variable with “c” levels using “c-1” dummy variables. Population Mean of Y = 0 + 1X1 + 2X2 + … + + c-1Xc-1 What would be the base average price? 0 = μc What would represent? 0 + 1X1 + 2X2 +X3 => if you choose level 3, 0+μ3 => μ3- μc What would be the population mean of level 2? 0+μ2 => μ2- μc Error due to...
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...THE RELATIONSHIP BETWEEN STOCK MARKET AND ECONOMIC GROWTH IN ASEAN COUNTRIES BY KOH YONG HONG CHOONG PIK SIN LEE SOCK MEI NG HON MENG LEONG MUN HONG A research project submitted in partial fulfillment of the requirement for the degree of BACHELOR OF BUSINESS ADMINISTRATION (HONS) BANKING AND FINANCE UNIVERSITI TUNKU ABDUL RAHMAN FACULTY OF BUSINESS AND FINANCE DEPARTMENT OF FINANCE MARCH 2016 Copyright @ 2016 ALL RIGHTS RESERVED. No part of this paper may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, graphic, electronic, mechanical, photocopying, recording, scanning, or otherwise, without the prior consent of the authors. DECLARATION We hereby declare that: (1) This undergraduate research project is the end result of our own work and that due acknowledgement has been given in the references to ALL sources of information be they printed, electronic, or personal. (2) No portion of this research project has been submitted in support of any application for any other degree or qualification of this or any other university, or other institutes of learning. (3) Equal contribution has been made by each group member in completing the research project. (4) The word count of this research report is 10,786 words. Name of Student: Student ID: Signature: 1. KOH YONG HONG 11ABB02521 2. CHOONG PIK...
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...Descriptive Statistics Descriptive statistics involves organizing, summarizing and illustrating statistical data. The objective is to show important characteristics of the data without drawing any conclusions. Inferential statistics involves using a representative subset of data (a sample) in order to draw conclusions about unknown characteristics of an entire set of data (a population). Population: The entire set of elements of interest (i.e. all humans, all working-age people in Canada, all IT companies). A population parameter is a characteristic used to describe a population. For example, Population mean ( Population standard deviation ( Population median ( The values of the population parameters would be preferable for use in decision-making but seldom will these values be known since collecting all the population elements (a census) is usually too expensive and/or time consuming. Sample: A representative subset of the entire set of elements of interest that is used to gain insight about the population. A sample statistic is a characteristic used to describe a sample. For example, Sample mean [pic] Sample standard deviation s Sample median Md It is cheaper, less time-consuming and more practical to use sample statistics as estimates for population parameters in making business decisions. How well the sample represents the population depends on...
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...Transforming Lives Communities The Nation …One Student at a Time Disclaimer Academic programmes, requirements, courses, tuition, and fee schedules listed in this catalogue are subject to change at any time at the discretion of the Management and Board of Trustees of the College of Science, Technology and Applied Arts of Trinidad and Tobago (COSTAATT). The COSTAATT Catalogue is the authoritative source for information on the College’s policies, programmes and services. Programme information in this catalogue is effective from September 2010. Students who commenced studies at the College prior to this date, are to be guided by programme requirements as stipulated by the relevant department. Updates on the schedule of classes and changes in academic policies, degree requirements, fees, new course offerings, and other information will be issued by the Office of the Registrar. Students are advised to consult with their departmental academic advisors at least once per semester, regarding their course of study. The policies, rules and regulations of the College are informed by the laws of the Republic of Trinidad and Tobago. iii Table of Contents PG 9 PG 9 PG 10 PG 11 PG 11 PG 12 PG 12 PG 13 PG 14 PG 14 PG 14 PG 14 PG 15 PG 17 PG 18 PG 20 PG 20 PG 20 PG 21 PG 22 PG 22 PG 22 PG 23 PG 23 PG 23 PG 23 PG 24 PG 24 PG 24 PG 24 PG 25 PG 25 PG 25 PG 26 PG 26 PG 26 PG 26 PG 26 PG 26 PG 27 PG 27 PG 27 PG 27 PG 27 PG 27 PG 28 PG 28 PG 28 PG 28 PG 28 PG 33 PG 37 Vision Mission President’s...
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...CURRICULUM OF GEOGRAPHY For 4 years BS & 2 years MS (Revised 2009) | | HIGHER EDUCATION COMMISSION ISLAMABAD CURRICULUM DIVISION, HEC Dr. Syed Sohail H. Naqvi Executive Director Prof. Dr. Altaf Ali G. Shahikh Member (Acad) Miss Ghayyur Fatima Director (Curri) Mr. M. Tahir Ali Shah Deputy Director (Curri) Mr. Shafiullah Deputy Director Composed by Mr. Zulfiqar Ali, HEC Islamabad CONTENTS 1. Introduction………………………………… 6 2. Aims and Objectives……………………… 10 3. Standardized Format for 4-years BS degree programme ………………………. 12 4. Scheme of Studies for BS …………………. 14 5. Details of Courses for BS …………………. 16 6. Elective Group Papers ……………………. 45 7. Scheme of Studies for MS Programme …. 48 8. Details of Courses for MS …………………. 50 9. Optional Courses Model……………………. 56 10. Recommendations …………………………. 61 11. Annexures A,B,C,D & E …………………… 63 PREFACE Curriculum of a subject is said to be the throbbing pulse of a nation. By looking at the curriculum one can judge the state of intellectual development and the state of progress of the nation. The world has turned into a global village; new ideas and information are pouring in like a stream. It is, therefore, imperative to update our curricula regularly by introducing the recent developments in the relevant fields of knowledge. In exercise...
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... Buchanan (1974) provided several criteria for a good statistic, and concluded: “The percentage is the most useful statistic ever invented…” (p. 629). I agree, and thus my choice for the title of this book. In the ten chapters that follow, I hope to convince you of the defensibility of that claim. The first chapter is on basic concepts (what a percentage is, how it differs from a fraction and a proportion, what sorts of percentage calculations are useful in statistics, etc.) If you’re pretty sure you already understand such things, you might want to skip that chapter (but be prepared to return to it if you get stuck later on!). In the second chapter I talk about the interpretation of percentages, differences between percentages, and ratios of percentages, including some common mis-interpretations and pitfalls in the use of percentages. Chapter 3...
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...A Handbook on Thesis Writing 1 BASICS OF THESIS WRITING Thesis Writing is a requirement for graduating students particularly those who opted for Plan A (Thesis) instead of a comprehensive examination. This book focuses on the mechanics on how to develop a thesis and is made simple for easy understanding of the processes. Many students are confronted with tasks that demand good writing skills. They need guidance on how to go about the complex job of writing a thesis or dissertation. This book will therefore serve as a guide. Thesis Writing is subsumed under Technical Writing. All professional fields require technical documents that help readers perform tasks and understand specific tasks. As mentioned by some authors, thesis is classified under technical writing as it provides vital information to specific readers. Technical Writing refers to the provision of specific information to clearly identified readers who will use the information for a specific purpose. KEY FEATURES OF TECHNICAL WRITING Three Elements of Technical Writing. The elements are reader, purpose and writing situation. The reader seeks information for a specific purpose. The purpose is to design a document that will serve the reader's need and help the reader understand the information. The writing situation consist of both reader and purpose, as well as such factors such as the sponsoring organization's size, budget, ethics, deadlines, policies, competition and priorities. Three General Stages of Technical...
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