4/24/2020

Problem Session

• Please volunteer by expressing interest in the chat window
• Chapter 15 Exercises - 15.22, 15.25, 15.27, 15.32, and 15.33

Chapter 15 Nonparametric Statistics

• Friedman Test for a Block Design
  • friedman.test(y~A|B) #y contains responses, A is a grouping factor, and B is a blocking factor
• The Runs Test for Randomness
• Rank Correlation Coefficients
  • Spearman's Rho
    • Use cor.test(x,y, method=c("spearman"))
  • Kendall's Tau
    • Use cor.test(x,y, method=c("kendall"))

Problem session exercises for next time

• Chapter 15 Exercises - 15.37, 15.39, 15.48, 15.53, 15.58, 15.64, 15.72

Please read Sections 15.8 - 15.11 for class on Monday.