Descriptive and Inferential Statistics Essay

906 words - 4 pages ✓ Expert Reviewed
VIEW DOCUMENT
Preview

Descriptive and Inferential statistics descriptive and Inferential statistics statistics, a branch of mathematics that focuses on the organization, analysis, and interpretation of a group of numbers (Aron, Aron, and Coups, 2006, p.2), play a very influential role in the field of psychology. Psychologists use descriptive statistics to summarize and describe a group of numbers from a research study. Inferential statistics are used to draw educational conclusions and inferences based on numbers from research, but psychologists take the information further than the numbers (Aron, Aron, and Coups, 2006). There are many functions of statistics and examples between the two types are also abundant.Functions of StatisticsWhat is the function of statistics? In order to answer this question, a definite definition must be specified. After reviewing many sources, a compilation of many different definitions has been put together. According to the American Heritage Dictionary, statistics is a numerical value that characterizes information from which it was taken (Houghton Mifflin, 2006). At Dictionary.com statistics is 搕he science that deals with the collection, classification, analysis, and interpretation of numerical facts or data, and that by use of mathematical theories of probability, imposes order and regularity on aggregates of more or less disparate elements (Random House, 2006). So, in language that anyone could understand statistics is a code of numbers, which tells significant information that a person has questions or concerns about. The process is simple. After the researcher retrieves information based on a hypothesis, or simply out of curiosity, he uses mathematical equations to transform the information into a set of numbers. After the numbers are presented, several kinds of information can be extracted, depending on what is needed.Defining Descriptive and Inferential StatisticsDescriptive statistics consolidates detailed data into a simplified format for easy interpretation. This type of statistics takes quantitative details and summarizes the data to aid in grasping what is going on with the details data in a manageable format. (Trochim, 2006) For example, a team抯 field goal percentage is useful; team A shot 60% from the field and team B shot 46% in the same game. Based on descriptive statistics, the data of two point and three point shots (excluding free throws) attempted and made by each team from a particular game is summarized and results in the field goal percentage. Descriptive statistics can also decipher shots made from shots attempted, aiding in determining which team won the game. Team A, with 60% from the field, did not necessarily win. Team B may have a field goal percentage of 46%, however, if they made 75% of their shots versus team A making 15% of their shots then...

Find Another Essay On Descriptive and Inferential Statistics

Basic Defender Statistics Essay

1035 words - 4 pages influence one another. Descriptive statistics provide a defender with summaries about the data collected and these summaries may be either quantitative or visual. Quantitative descriptive statistics are the sum of data points that are usually reported as total numbers or averages in a report. For example, defender offices can use descriptive statistics to determine the total of open felony cases per attorney in one year or say that on average they...

Statistical Techniques In Quality Management: Descriptive Statistics

1060 words - 4 pages methods can also provide information about the most likely causes of the problem. Statistical methods also have predictive value because they can identify potential problems before they have a significant impact on quality (Ryan, 3). Some of the statistical tools include descriptive statistics data such as frequency distributions, histograms, and inferential statistics analysis approaches such as regression analysis and analysis of variance...

Statistical Techniques

1152 words - 5 pages , mean, mode, median, and standard deviation (Weinclaw, 2009). Descriptive statistics is very basic; there is no testing or predicting based on testing the data. It can be used to determine if a sample is normally distributed. The next level of statistics is inferential statistics. Inferential statistics is much more complex than descriptive statistics and is used for analysis and making inferences based on hypothesis testing to determine...

Research Statistics And Psychology

960 words - 4 pages focusing on the organization and analysis of numbers, statistics is divided into two primary branches. The first branch of statistics is descriptive statistics and the second branch is inferential statistics. Descriptive statistics is relevant in defining or summarizing the role a group of numbers play in research. However, inferential statistics assist the researcher in drawing conclusions and making inferences from numbers based on research...

Analysis Methods Assignment

1453 words - 6 pages , every member of a group or population is measured and is useful for studying the subject. A good example of descriptive statistics is the Australian Census, in which all members of a population are counted. Descriptive statistics usually consist of frequency tables, pie chart, bar charts and the central tendency (measures of the mean, median and mode). B. Unlike descriptive statistics, inferential statistics provide ways of testing the reliability of...

IMPACT OF FINANCIAL CRISIS ON GULF AREA

758 words - 3 pages data will be collected from peer reviewed journals as well as from textbooks and approved dissertations. The analysis will be carried out in two phases, quantitative and qualitative analysis. Quantitative analysis will be through descriptive and inferential statistics. The questionnaires will be analyzed by the use of descriptive and inferential statistics. This information will be interpreted later ad presented in graphs and tables for easy...

Elementary Statistics: A Brief Version(A. Bluman 3rd Ed., 2003): OUTLINE Of Chapter 1.

634 words - 3 pages , organize, summarize, analyze, and draw conclusions from data.Descriptive statistics consists of the collection, organization, summarization, and presentation of data.Inferential statistics consists of generalizing from samples to populations, performing estimations hypothesis testing, determining relationships among variables, and making predictions.Probability is the chance of an event occurring.A population consists...

Research And Design Statistics Worksheet MBA/510

608 words - 2 pages measurement of a qualitative variable can only be classified and counted" (Lind, Marchal, Wathen, 2005, p. 10). Ordinal - "The ordinal level of measurement presumes that one classification is ranked higher than another" (Lind, Marchal, & Wathen, 2005 p. 11). Descriptive and Inferential Statistics...

Descriptive Or Expressive Statistics

1082 words - 4 pages designs and samples. It provides tools used to forecast and utilize data as well as the models for statistics. Also, it’s pertinent in many hypothetical fields that comprise the government, business, social and natural disciplines. Descriptive or expressive statistics are exclusively used to designate the sample example under study. They are essentially used to describe the important features of a given data. They provide simple summaries...

Unemployment Effect on Disability Fraud in State of California

1178 words - 5 pages for our research. We will use the mean or average of the data for both sides from each selected time period in order to determine if there is a pattern. We will also note the variance and standard deviation. The reason why Descriptive Statistics is more effective for this type of research is because it allows for collected data to be summarized and to show a representation of what actually happened. Inferential Statistics would not be as effective...

Annual Land-Based Overseas Filipino Workers Remittances From Hongkong And Singapore For The Years 1989 To 2010

1681 words - 7 pages are because of their proximity to the country and more importantly, strong economic positions. Also, these two countries are hailed as top OFW destinations in 2009 by the Philippine Overseas Employment Office (POEA); Hongkong placed third while Singapore placed sixth (Ruiz, 2010). Current trends also show that the population of Filipino workers in these countries has augmented (POEA, 2010). Descriptive statistics and inferential statistics is...

Other Descriptive and Inferential Statistics Essays

Exploring Inferential Statistics And Their Discontents

2697 words - 11 pages inferential statistics to determine confidence (Hopkins, Marshall, Batterham, & Hanin, 2009). What is the General Linear Model (GLM)? Why does it matter? The General Linear Model (GLM) is an important cornerstone that delivers a comprehensive and prevalent mathematical structure for statistical analyses in applied social research (Trochim & Donnelly, 2008; Zheng & Agresti, 2000). GLM is a system that measures the predictive power and...

Descriptive Statistics - Research And Assessment

1490 words - 6 pages with the cargo space and performance offered by utility trucks and sports cars. People's perceptions are not in line with their buying behavior." Automotive News, an industry trade publication, ranks the most popular U.S. vehicles and only two of those cars meet the federal gas mileage guidelines.Data analysis using descriptive statistics continuedThe Chevrolet Corvette made the top 10 lists and it gives 19 miles to the gallon, the...

The Use of Statistics in Business

606 words - 2 pages and drawing conclusions based on sampling about the data sets (McClave, Benson & Sincich, 2011). Statistics are divided into two areas: descriptive statistics and inferential statistics. Descriptive statistics are procedures used to describe and organize the basic characteristics of the data studied. Descriptive statistics provide simple summaries about the sample group and the measures. This application of statistics is used to present...

Descriptive Statistics Essay

1379 words - 6 pages /Statistics" title="Statistics">Statistical Association [ASA], 2008). Statistics is a division of mathematics that centers on the collection and evaluation of data, which can be drawn upon to make conclusions (Aron, Aron, & Coups, 2006, 2). Two branches of statistics exist, including descriptive and inferential domains. Extrapolation beyond the data is where the real difference emerges. Indeed, these two subcategories vary in function and...