# Statistical Essays

• ## Statistical Investigation

2172 Words  | 5 Pages

Statistical Investigation Introduction I have chosen to do this statistical coursework that uses data from 'Mayfield High School.' Although this is a fictitious school, the data is based on a real school. As the data has been collected for me, it is called secondary data. I believe that this coursework will allow me to illustrate my ability to handle data, use specific techniques and apply higher level statistical maths by being able to use a variety of methods in order to analyse

• ## Statistical Investigation

2980 Words  | 6 Pages

Statistical Investigation For my Maths GCSE's I am required to do two pieces of coursework one of which is a piece on statistics. The purpose of this project is to help me investigate a real life situation using statistics. In this case I have been given some quantitative data on the end of year maths test scores of children in year 8. What I am supposed to do is compare the data by making hypotheses to indicate if there is something comparable between the results. First I have decided

• ## Statistical Investigation

3796 Words  | 8 Pages

Statistical Investigation All graphs should be attached. An Investigation into the Relationships between the Heights and Weights of a Rangeof Studentsat Mayfield High Aim I aim to investigate the relationship between the heights and weights of a range of students from different demographics at "Mayfield High". Prediction I. I predict initially that the average male height will be greater than the average female height. That is due to biology stating that males are, on average

• ## Statistical Investigation on Car Prices

1938 Words  | 4 Pages

Statistical Investigation on Car Prices Data Collection: We are asked to find the relationship between prices of Â‘51 registeredÂ’ cars and variables such as their current new price, mileage and weight by using the regression analysis. To collect full information of these registered cars, we can access to the websites like: http://www.exchangeandmart.co.ukHowever, in this easy, we use the data, which are provided with the assignment by our teachers. By the sources, 100 cars, which

• ## Statistical Methods and Probability

986 Words  | 2 Pages

on mathematics theory and probability, which allows the user to summarize many observations concisely. The first recorded use of statistics was in the 16th century; it was used by gamblers and life insurance companies. The use and development of statistical methods has greatly expanded in the 20th century. The invention of the computer simplified calculations (Chesemore, 2011). In addition to learning that statistics is used more often than I thought, I have learned the methods, calculations, the theories

• ## Statistical Mechanics Essay

1278 Words  | 3 Pages

Ivins Professor Rowell Math 220 5 April 2014 Statistical Mechanics Statistical mechanics is a very broad subject with many other concepts under its umbrella. This topic has entire classes dedicated to it, with hundreds of theories and equations, so instead of unrealistically trying to master a whole course I instead sought to get a general understanding of the topic to the point that I could apply what I learned to future courses featuring statistical mechanics. However, to understand the topic I

• ## Statistical Investigation into Rollercoaster Data

1486 Words  | 3 Pages

Statistical Investigation into Rollercoaster Data I am going to be completing a statistical investigation from some collected data. This will be obtained from a World Rollercoaster Database. The information that can be seen from the database about an individual rollercoaster is: which country designed it, when it opened, its height, its length, its max speed, the ride time, and the thrill factor out of 10. I am going to investigate whether the fastest rides are the most exciting. I would

• ## Statistical Investigation Into Height and Weight of Students

3097 Words  | 7 Pages

Statistical Investigation Into Height and Weight of Students My hypotheses are as follows: ~ 1. Year 11 students are, on average, taller than year 9 students. 2. There is better correlation between height and weight in year 7 than there is in year 11. 3. The taller someone is the heavier they are. Below are the sampling methods that I have used in my coursework: Stratified Simple Random Stratified sampling can be defined as the process where the population is divided into

• ## Statistical Analysis Of ANOVA

1311 Words  | 3 Pages

The systematic factors have a statistical influence on the given data set, but the random factors do not. Analysts use the analysis of the variance test to determine the result independent variables have on the dependent variable amid a regression study. BREAKING DOWN 'Analysis Of Variance

• ## Discussion About Statistical Analysis and Results

1329 Words  | 3 Pages

DISCUSSION ABOUT STATISTICAL ANALYSIS AND RESULTS; Statistical analysis two independent sample tests compare the mean of the randomised case-control group. To find the significant difference between the two groups, data collections are mean value, so t test is the suitable test to compare the mean value of the two groups in normal distributed data (Menz, 2004). Result of the t test shows body mass index significant p value .005 less than .05 and the mean value of the BMI in case group greater than

• ## Mental Disorders: The Diagnostic And Statistical Manual

962 Words  | 2 Pages

According to many studies the Diagnostic and Statistical Manual of Mental Disorders known as the DSM has been praised and helped in many situations. It has helped psychiatric diagnostic categories and criteria. The DSM has helped form subjective systems and categories from normality, cultural bases or medicalization of human distress. All over the United States the Diagnostic and Statistical manual is used. The DSM answers many questions whenever it comes to mental disorders. The Diagnostic Statistic

• ## Analysis Of Kolmogorov-Smirnov Test As A Statistical Test

764 Words  | 2 Pages

3.9 DATA ANALYSIS METHODS 3.9.1 NORMALITY TEST Saunders, Lewis and Thornhill (2007) explains Kolmogorov-Smirnov test as a statistical test used to find out the probability that an observed set of values for each category of a variable differs from a specified distribution. In this study, one-sample Kolmogorov-Smirnov test was used to check whether the collected are distributed normally or not. Table 3.6 One Sample Kolmogorov-Smirnov Test Variables Kolmogorov-Smirnov Z P-value Behavioural Intention

• ## The Diagnostic And Statistical Manual Summary

838 Words  | 2 Pages

The Diagnostic and Statistical Manual of Mental Disorders (DSM-5) defines and classifies mental disorders to enhance diagnoses, education, treatment, and research in mental health and related fields or professions. The manual is a category, collection of, and assessment of mental disorders. The manual’s primary objective is to assist with the measurement and review of multiple types of clinical settings in the mental health profession. The DSM is an essential guide or manual for licensed mental

• ## The Diagnostic and Statistical Manual of Mental Disorders

1371 Words  | 3 Pages

The Diagnostic and Statistical Manual of Mental Disorders (DSM) is the comprehensive guide to diagnosing psychological disorders. This manual is published by the American Psychiatric Association (APA) and is currently in its fifth revision. Moreover, the manual is utilized by a multitude of mental health care professionals around the world in the process of identifying individuals with disorders and provides a comprehensive list of the various disorders that have been identified. The DSM serves

• ## Statistical Validity

1252 Words  | 3 Pages

Valid reliability “Statistical validity by definition refers to whether a statistical study is able to draw conclusions that are in agreement with statistical and scientific laws.” (Golafshani, 2003) With that being said, if a conclusion is drawn from a given data set after experimentation, it is said to be scientifically valid. Especially if the conclusion drawn from the experiment is scientific and relies on mathematical and statistical laws. Statistical reliability ensures the validity and precision

• ## Statistical Consultants

524 Words  | 2 Pages

• ## Statistical Process Control: A Method Of Statistical Process Management

1617 Words  | 4 Pages

Statistical Process Control (SPC) is a method of quality control that uses statistical means in order to improve a process. In general, SPC the process inspects random samples of output and determines whether or not the process is producing within an acceptable range – this will be elaborated upon later. Originating in the 1920s, a physicist, Walter Shewhart, analyzed variation in production processes[i]. Shewhart understood variation was inherent within a production process, but instead focused

• ## Personal Reflection For Statistical Analysis

731 Words  | 2 Pages

Being a naturally analytical person I find statistical analysis to be captivating. Looking back through my career and educational experiences, the one constant has been data. I have utilized statistical analysis working in a behavioral research lab, coordinating a community-based family support program and developing programs to diversify the scientific workforce. The synthesis of data can be very powerful, and is essential for the progression of research, health programming, strategic plans and

• ## The Importance Of Statistical Analysis In Research

801 Words  | 2 Pages

Introduction American Statistical Association published Leveraging Statistics with Computer Science to Transform Science and Society in 2014. The primary author, Cynthia Rudin, explains how statistical analysis benefits different scientific fields using computers to collect Big Data, gathering large amounts of data pertaining to the specific topic, and do computations on the gathered data. This analysis helps the research of all disciplines such as biological sciences, healthcare, and civic infrastructure

• ## The Diagnostic and Statistical Manual of Mental Disorders: Comparing DSM-IV and DSM-5,

2204 Words  | 5 Pages

The Diagnostic and Statistical Manual of Mental Disorders (DSM) has been used for decades as a guidebook for the diagnosis of mental disorders in clinical settings. As disorders and diagnoses evolve, new versions of the manual are published. This tends to happen every 10 years or so with the first manual (DSM-I) having been published in 1952. For the purpose of this discussion, we will look at the DSM-IV, which was published originally in 1994, and the latest version, DSM-5, that was published