Data Analysis Descriptive Statistics‚ Estimation‚ Regression & Correlation Treatment Effects of a Drug on Cognitive Functioning in Children with Mental Retardation and ADHD Hossam Elhowary MATH-1016-15 Dr. Maria DeLucia December 09‚ 2014 Introduction The purpose of this survey was to investigate the cognitive effects of stimulant medication in children with mental retardation and Attention-Deficit/Hyperactivity Disorder. Twenty four children were given various dosage of a drug a placebo and
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Name: Bin Date: Frequency 1 2 2 1 Directions: Answer all problems and submit to instructor at the end of module 1 3 6 4 7 5 4 6 4 7 1 8 1 More 0 Q1 Descriptive Statistics Excel Worksheet b Q2 d Q3 e Q4 b 5. For the following sample of scores: 2‚ 6‚ 1‚ 4‚ 2‚ 2‚ 4‚ 3‚ 2 Mean variance standard deviation 2.889 2.099 1.537 Find the mean‚ variance and standard deviation 6. A sample of size 7 (n = 7) has a mean of M = 9. One of the sample scores is changed from x
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index is a set of variables combined to measure a more abstract concept. A researcher may wish to construct an index‚ simple because a single measure may not work. For example the Uniform crime index‚ which averages the number of crimes per 100K of people‚ only having the crime of murder or robbery would not be a sufficient measure of the entire phenomena of crime what about rape‚ homicide etc. that would be adding more variables to the set so that you can measure all different types of crime and get
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LECTURER-IN-CHARGE: PROF. B. A. OLUWADE CSC 403: NUMERICAL COMPUTATION II (with MATLAB) TUTORIAL QUESTIONS 1 (a) What do you understand by the Euler method ? (b) Let y/ = 3y + 1 y(0) = 2 be an initial value problem. Using Euler method‚ present an approximation of y(5) using a step size of 1. 2 (a) State Simpson’s rule. (b) Write MATLAB code for finding the numerical approximation of a definite integral using (a) above. 3 (a) Write the meaning of the following MATLAB
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Descripitive Statistics Paper Descriptive Statistics Paper Laura L. Mason‚ Becky Matlock‚ and Nichole Noble RES/341 June 15‚ 2011 David Morrisson Descriptive Statistics Paper Major League Baseball is known as America’s favorite pastime‚ and MLB teams spend an extensive amount of money in the excess of a billion dollars with the ultimate goal to win the World Series. This learning team’s focus throughout this descriptive statistics paper is the MLB players’ performances‚ salaries‚ salary
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Numerical Methods Questions 1 f(x) = x3 – 2x – 5 a) Show that there is a root β of f(x) = 0 in the interval [2‚3]. The root β is to be estimated using the iterative formula ‚2 5 2 0 2 1 1 = =++ x x x n n b) Calculate the values of x1‚ x2‚ x3‚ and x4‚ giving your answers to 4 sig fig. c) Prove that‚ to 5 significant figures‚ β is 2.0946 2 Use the iterative formula n n n cox x x − =+ 1 1 With x1 = 0.5 to find the limit of the sequence x1‚ x2‚ x3
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Descriptive Statistics QNT/561 July 29‚ 2014 Descriptive Statistics Job Satisfaction Central Tendency: Mean=8.5 JDI Dispersion: Standard Deviation=1.16 JDI Number: 139 Min/Max: 7 to 10 JDI Confidence Interval: 8.36 to 8.75 JDI *JDI=Job Descriptive Index Months of Employment Central Tendency: Mean= 136.24 Months Dispersion: Standard Deviation= 117.26 Months Number: 139 Min/Max: 1 to 359 Months Confidence Interval: 116.74 to 155.73 Months Descriptive
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Descriptive Statistics and Probability Distribution Problem Sets Emily Noah QNT561 Anthony Matias December 24‚ 2012 Descriptive Statistics and Probability Distribution Problems Sets Descriptive statistics and probability distribution is two ways to find information with certain data giving. In Descriptive statistics the data can give a mode‚ mean‚ median‚ and range by the numerical information‚ which is giving to find the information. In probability distribution the data is collected and
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CHAPTER 3 Research methodology 3.1 INTRODUCTION This chapter deals with the research methodology of the study‚ including the research design‚ setting‚ population‚ sample and data-collection instrument. 3.2 RESEARCH DESIGN Polit and Hungler (1999:155) describe the research design as a blueprint‚ or outline‚ for conducting the study in such a way that maximum control will be exercised over factors that could interfere with the validity of the research results. The research design
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Chapter 3 RESEARCH METHODOLOGIES This chapter deals with the research design‚ research respondents‚ sampling procedure‚ research locale‚ research instrument‚ data gathering procedure‚ scoring procedure‚ reliability and validity of instrument and statistical treatment. Research Design This study used the descriptive method of research. It is a method designed to describe the data and characteristics about what is being studied. Descriptive research‚ also known as statistical research‚ describes
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