The last big test of the six weeks is coming up on W/Th, Feb 10/11. This is a rather big one, so please prepare appropriately!

• Review Ch 20-22: Full version (7 pages) | Short version (2 pages)
• Answers only [you may check your work in tutorials]

Here are the notes for the last two lessons of the unit (2-proportion z-intervals and z-tests):

• 22 Notes - Inference with Two Proportions KEY

If you are extra-inquisitive, this is a quick example calculation of beta and power:

• 21 Extra Example - Calculating Power (this is not something that you need to know for this class)

Here are the notes for block #9 (F/M, Jan 29/Feb 1) over chapter 21 (Type I/II errors, power of a test).

• 21 Notes - Errors in Hypothesis Tests - POWER [DOWNLOAD BWx4]
• [PDF in color - NOT ideal for printing]

Here is the worksheet that accompanies the bookwork:

• 21 Worksheet - P-values and Power (you may skip #1 and #2 on this worksheet)

Here are the notes for block #7 (M/Tu, Jan 25/26). This is a VERY critical section of the course, so if you have any questions, please ask for help asap!

• 20 Notes - Hypothesis Testing with Proportions [PRINT-FRIENDLY]
• [PDF in color - NOT ideal for printing]

Sadly, no changes to the homework on the calendar.1

1. but it's not that long to begin with [↩]