2/8/2013

Questions on Kids198.R

See Chpt3, Sec3.3.ppt

• Comparing two regression lines
  • Fitting separate regression lines (for different levels of a group variable)
  • Indicator variables
  • Comparing intercepts
  • Comparing slopes
  • Nested F-test

R LAB

• Exercise 3.19 on p. 155

Please read Section 3.5 for class on Monday.