Chapt1

Chapt1 - Chapter 1 Statistics, Data and Statistical...

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1 Chapter 1 Statistics, Data and Statistical Thinking Why do you need to study statistics? 1. Summarize Data There are 53,502 students enrolled at UCF this semester 2. Data analysis Advil is faster working than Tylenol 1. Understanding of journal articles and news stories There has been an increase in violent crimes in Orlando 4. Information Age
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2 Where does the information come from? Obtained by surveys, experiments, direct observation of behavior, or recorded information (web or journal articles) consist of measurements on the characteristics of interest (variables)
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3 Statistics Consists of a body of methods for collecting and analyzing data Statistics provides methods for: 1. Design -- planning and carrying out research studies 2. Description (Chapters 1 – 6) 1. Inference (Chapters 6 – 9)
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4 Objective 1 : Know the difference between Descriptive and Inferential Statistics Two types of statistical analysis Descriptive Statistics -- summary descriptions such as measures of center and variation (used to describe data) Inferential Statistics – drawing conclusions about the population based on a sample
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This document was uploaded on 10/08/2008.

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Chapt1 - Chapter 1 Statistics, Data and Statistical...

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