2/8/2016

Chapter 6 - Paired Data

• Using R to compare the mean or median difference
• Example - Exercise 25 on p. 220 - Coor Field: Is this a hitter's park?
  • Open P:\Data\MATH\Hartlaub\SportsStats\SRIS Data\Chapter 6\Ex6-25.csv
  • Previous Student Project - Download "Home Runs at Coors Field" from http://www2.kenyon.edu/Depts/Math/hartlaub/Math192%20Spring2009/Math192%20S2009.html
  • Discuss the difference between independent samples and paired data
  • Use R to form the difference for each pair
  • Use t.test to make the appropriate inference
  • Use wilcox.test to conduct the signed rank test
  • Download and install the package BSDA, and then conduct the sign test using SIGN.test(x, md=0)

Project Proposals

Please e-mail me by the end of the week with the names of the people in your group, a short description of your project, and a preferred date for your presentation (sometime in the next two weeks).

In class exercises for Chapter 6

• Use R, SRIS applets, or Statkey to solve Exercises 3, 17, 19, and 25

Reading Assignment - Please read Chapters 7 for class on Wednesday.

Our second quiz will be on Friday.