Day 8: STA205 - Introduction to Statistical Methods

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• Today:
  • Reminder: please hide your rectangles.

  • Quiz at the end of the hour.

  • Your first test is two weeks away....

  • Kylie Zent sent me the link to this Sampling Distribution of the Sample Proportion Calculator which she has found useful for checking her work.

• Today we continue with Packet 04 (Hypothesis Test for p).

  • An amusing example of an hypothesis test (search for 'experiments' -- with the quotes)

• Links:
  • Sampling Distribution of the Sample Proportion Calculator

  • The Standard Normal Table of probabilities.

  • Please watch Brooke's Sampling distribution of the sample proportion at some point. It will help you finish off Packet 3.

  • StatCrunch instructions for packet 2 (and for IMath homework, more generally, that involves Statcrunch):
    • Load the Stop and Frisk Data for packet 2. Click on My Data, then "Upload data set".

      Under "Select data source", choose "WWW address", and make sure to set the delimiter to "comma" (because this is a "csv" (comma-separated values) file.

    • Once the data is loaded, click on "Graph" or "Table".
    • Alternatively, you may want to join my "group" on Statcrunch. That way you can access the data more quickly. It's Sta205-Long, if you want to add yourself into that group.
    • For the IMath homework, you'll need the Bipolar Depression Study data. Same thing: Load it by "WWW address", and make sure to set the delimiter to "comma" (because this is a "csv" (comma-separated values) file (or get it from the group).

  • What's so sexy about math?: Hidden truths permeate our world; they're inaccessible to our senses, but math allows us to go beyond our intuition to uncover their mysteries. In this survey of mathematical breakthroughs, Fields Medal winner Cedric Villani speaks to the thrill of discovery and details the sometimes perplexing life of a mathematician. "Beautiful mathematical explanations are not only for our pleasure," he says. "They change our vision of the world."

    (This video features the normal curve, at minute 2:25. "It is the supreme law of unreason.")