Page 13 - Quantitative Data Analysis

 Percentile 16

 Quartile  16
 Inter-quartile Range 18
 5-number Summary 21

 Outliers 22
 Standard Deviation 23
 Unit Exercises 26

Unit # 3 - Statistical Inference & Hypothesis 28
Testing
 Hypotheses 28
 Purpose of the Hypothesis 29

 Characteristics of a Usable Hypothesis 30
 Types of Hypotheses 30
 Null Hypothesis  30
 Alternative Hypothesis  31

 One-tailed vs Two-tailed Hypotheses 32
 Hypothesis Examples 33
 Level of Significance 35
 p Value 35

 Critical Values 36
 Conclusion 37
 Potential Statistical Errors 38
 Type I Errors 39

 Type II Errors 39
 Type I and Type II Error Examples 40
 Effect Sizes 41
 Simple Test Statistics 42

 One Sample Z-Test 42