5.Data Analysis: A Concise Overview of Statistical Techniques

5.1 Descriptive Statistics: Some popular Displays of Data

• 5.1.1 Organizing Qualitative Data

• 5.1.2 Organizing Quantitative Data

• 5.1.3 Summarizing Data Numerically

• 5.1.4 Cross-Tabulations

5.2 Inferential Statistics: Can the Results Be Generalized to Population?

• 5.2.1 Hypotheses Testing

• 5.2.2 Strength of a Relationship in Cross-Tabulation

• 5.2.3 Describing the Relationship between Two (Ratio Scaled) Variables

 

Types of Statistical Data Analysis

Descriptive:

• Descriptive statistics provide simple summaries about the sample and about the observations that have been made.
• Include the numbers, tables, charts, and graphs used to describe, organize, summarize, and present raw data.

Inferential:

• Inferential statistics are techniques that allow making generalizations about a population based on random samples drawn from the population.
• Allow assessing causality and quantifying relationships between variables.

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