Here are the notes for Fri/Tues, Feb 13/17. This was over chapter 23 in the textbook -- inference with 1-sample means, and the introduction to t-distributions.

• 23 Notes - Inferences with Means I (ppt version)
• PDF (color - NOT ideal for printing) | PDF (black and white)

As a reminder, if you lost your z-table (which is now also a t-table), you can download and/or print a copy of the formula charts here.

In case you forgot to pick one up after the test, this worksheet (obtaining p-values from simulations with pig dice) is due the class AFTER the Ch 20-22 test.

It will count as the first grade of the 5th Six Weeks, and will be a non-droppable grade.

The last big test of the six weeks is coming up on W/Th, Feb 11/12. 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

Here are the notes for block #9 (F/M, Jan 30/Feb 2) 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)