We worked on K-3. Important ideas!

  • Showing work on normal problems: normal, mu, sigma, boundary, direction. Write down your calculator menus with labels, and draw a sketch. (similar process for binomials)
  • You will never use the normalpdf button.
  • When finding probability with a mean, use sd/sqrt(n).
  • FRQ's with 4 parts and asking for "probability" are not inference problems. Problems with no parts or just (a) and (b) and asking for "statistically significant evidence" are full inference problems (blue sheets).