Editing Statistics and Statistical Programming (Winter 2021)/Problem set 11 (section)

===EQ1. LilyPad Arduino users===

These questions are for the Buechley and Hill paper on LilyPad Arduino. We'll focus on the statistical test conducted in ''Study 1'':

:: (a) What is the unit of analysis? What is the dependent variable? The independent variable? What groups are being compared in the test? Is it a one-way or two-way design?
:: (b) Why bother with the statistical test? Why is this an appropriate statistical procedure?
:: (c) What is the null hypothesis being tested? What is the alternative hypothesis? 
:: (d) Summarize/restate the results in both statistical and substantive terms. Assess the results: How convincing do you find them? What should we take away from this analysis?

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===EQ2. Two blogospheres===

These questions are about the Shaw and Benkler paper on political blogs. We'll focus on Table 3 and Figure 2:
:: (a) What statistical procedure produced the p-value in Table 3? State the null/alternative hypotheses being tested.
:: (b) How convincing do you find these results? What are some reasons to be skeptical?
:: (c) Reproduce Figure 2 using the data in Table 3. One thing that's missing from that figure is error bars. Based on the reading from Reinhart §5, what type of error bars do you think you should use? Figure out how to calculate the error bars and figure out if they overlap? What does that tell us? (Bonus: figure out how to add error bars to the bar plot)
:: (d) Should we be concerned about the base rate fallacy described in Reinhart §4? Why or why not?
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