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Where to Get Data? Run an Experiment Use Existing Data.

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Presentation on theme: "Where to Get Data? Run an Experiment Use Existing Data."— Presentation transcript:

1 Where to Get Data? Run an Experiment Use Existing Data

2 Existing Dataset What determines height? Not able to get data for all our variables! Gender has the biggest effect Parent’s Height also influence a Child’s Height GeneticsNutritionGender Heels Child’s Height Parent’s Height

3 “Non-Experimental” Study Non-Experimental – Variables can’t design ahead of time – Observe and Interpret Experimental Can Better Establish “Cause and Effect” – Can Control Predictors Barriers – Logistics – Cost – Ethics / Laws People Unethical?

4 Experimental Design: Medicine “Controlled Experiment”

5 Experimental Design: Web Design

6 Experimental Design: Product Marketing

7 Types of Research

8

9 Spurious Correlation

10 http://www.informationisbeautiful.net/play/snake-oil-supplements/ Types of Research

11 Statistical and Analytic ToolBox Standard Deviation Mean, Median, Mode Histogram Normal Distribution Binomial Distribution Probability Boxplot Correlation Regression Z-test for Proportions Chi-Square

12 Breadth vs. Depth vs. Relevancy CLASS PROJECT Statistics DataViz Computer Science CLASS


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