Statistics and Statistical Programming (Winter 2017)/Problem Set: Week 6
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< Statistics and Statistical Programming (Winter 2017)
Revision as of 02:44, 3 February 2017 by Benjamin Mako Hill (talk | contribs) (→Questions on the Empirical Paper)
Programming Challenges
- PC0. I've provided the full dataset from which I drew each of your samples in a TSV file in the directory
week_05in class assignment git repository. These are tab delimited, not comma delimited. TSV, is related to CSV and is also a common format. Go ahead and load it into R (HINT:read.delim()). Take the mean of the variablexin that dataset. That is the true population mean — the thing we have been creating estimates of in week 2 and week 3.
Statistical Questions from OpenIntro §6
- Q0. Any questions or clarifications from the OpenIntro text or lecture notes?
- Q1. Exercise 6.12 on public opinion about cannabis legalization
- Q2. Exercise 6.20 a continuation of 6.12
- Q3. Exercise 6.38 on translating a problem in English into statistical tests
- Q4. Exercise 6.50 another voter/public opinion question
Questions on the Empirical Paper
Let's just go back to the Buechley and Hill paper on LilyPad Arduino:
- Q5. For Study 1, lets focus on the statistical test:
- (a) What is the unit of analysis? What is the dependent variable? The independent variable? What are groups being compared in the test? Is it a one-way or two-way design?
- (b) What is the null hypothesis being tested? What is the alternative hypothesis?
- (c) Summarize ore restate results in statistical terms. Explain what these results mean in substantive terms? How convincing do you find these results? What should we be taking away?
- (d) Why weren't we happy just leaving it where we did in week 2? Why bother with the statistical test?
- Q6. Do the same as above but for Study 2.
