Here are the notes for day 9 (F/M, Feb 2/5), 2-sample t-tests and t-intervals for differences between means:

• Notes 8.2 - Inference with Two Sample Means DOWNLOAD notes
• HW #9 PROBLEMS

Here are the notes for the first day (W/Th, Jan 31/Feb 1) of inference with means (chapter 23 in the text). The big wrinkle is the introduction of the t-tables (the back-side of the z-tables handout!).

• Notes 8.1 - Inferences with Means (color slides) | B&W slides for printing
• Formula charts: z-tables, t-table, and chi-sq table (t-table is on the left-hand side of page 2)
• HW #8 PROBLEMS

Here is the review for the first exam of the second semester (scheduled for M/Tu, Jan 29/30) over inferences with proportions.

• Review Unit VII (Inference with Proportions)

If you need to refer to the formulas, here is a guide for the foldable for this unit:

• Foldables - Proportions

Today (Tu/W, Jan 23/24) is a practice day for everything in this current unit (inference with proportions).

Here is the homework packet for tonight (due Th/F, Jan 25/26):

• Worksheet 7.5 - Inference with Proportions Packet

And here is the test review that is due on exam day (M/Tu, Jan 29/30):

• Review Unit VII (Inference with Proportions)

Here are the notes for 2-proportion z-intervals and z-tests (chapter 22 in the text).

Important note: If you use the calculator shortcuts to perform these problems, you are NOT required to write the formulas and show the work (you are required, however, to name the procedure in the problem). Anything in orange ink in the following notes, therefore, is optional.

• Notes [WEB] 7.4 - Inference with Two Proportions
• HW #4 Problems

And if you need to finish your foldable for the proportions unit, here are the slides to walk you through that:

• Powerpoint 7.x - Foldables - Proportions