• Use confidence intervals for model coefficients to acknowledge sampling variation.
• Use confidence intervals  for model values to acknowledge sampling variation.
• Use  prediction confidence intervals for population values to acknowledge both sampling variation and population variation.

• Begin reviewing for the midterm exam
• Finish the Activity on model quality to turn in at the start of class.
• Read Chapter 12.1-12.6
• Do assignments Twelve and Thirteen on the homework server.
• Post to Piazza

In class

• Solution to handout on model quality
• Work with confidence intervals and prediction intervals