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Location sample - PowerPoint PPT Presentation

Lecture 14

Lecture 14. Descriptive Statistics Statistical Inference. Data: 2009/2010 Survey of peasant workers in Beijing. an observation. Education ( ?? ): 0=no education ( ???? ), 1=primary school ( ?? ), 2=middle school ( ?? ), 3=high school ( ?? ),

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Data Collection: Surveys & Sampling Methods

Data Collection: Surveys & Sampling Methods. How do we gather data?. Surveys Opinion polls Interviews Studies Observational Retrospective (past) Experiments. Sampling Design: method used to choose the sample from the population Types of Samples: Simple Random Sample

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Location sample - PowerPoint PPT Presentation

Lecture 14

Data Collection: Surveys &amp; Sampling Methods

Data Collection: Surveys & Sampling Methods