All right, it's time to start the most important topic in statistics: Inference (confidence intervals and significance tests). This is what we've been working towards all year!

Let's take a moment and recap where students have been before this. Before starting this unit, students should have an understanding of Unit 5: Sampling Distributions for both one and two samples. They have learned about the sampling distributions for both proportions and for means.

In CED Unit 6, we will be using their knowledge of the sampling distributions for proportions and extending it into inference.

This unit covers inference for proportions ONLY (no means). Inference for means will come next in CED Unit 7. If you're a new teacher, make sure to double check the sequence in your text against the CED. In an earlier blog post, we explained what the newly proposed instructional sequence in the College Board AP Statistics Course and Exam Description (CED) entails.

If you are using TPS 4e, 5e, or Classic 6e and are not planning on following the sequence in the CED, you can simply use the sequence in our 150 Days of AP Stats. This sequence will cover everything in the CED (just in a slightly different sequence).

If you are using TPS 6e UPDATE or want to use the new sequence of topics in the CED, here is your plan:

## Lesson Plans for CED Unit 6

### Part 1: Confidence Intervals for Proportions

### Chapter 8 in TPS 6e UPDATE

Day 3: Quiz 8.1

Day 6: Quiz 8.2

Day 8: Review

Day 9: Chapter 8 Test

### Part 2: Significance Tests for Proportions

### Chapter 9 in TPS 6e UPDATE

Day 5: Quiz 9.1 - 9.2

Day 8: Quiz 9.3

Day 11: Review

Day 12: Chapter 9 Test

Next up: Inference for means (CED Unit 7)! We'll be following the same pattern used with proportions. Lessons will be added in a blog post as soon as they're ready!

Jamie...the discussion of t and inference for means has moved to CED Unit 7. In TPS 6e Classic this is covered in Lesson 8.3. In TPS 6e UPDATE, it is covered in Lesson 10.1

In this Unit 6 Update, it seems as though the new 8.3 lesson does not include the discussion about t. However i see t is the old 8.3 day 1 and day 2 lessons (oreos and how many states can you name). I also see that the sample size practice and the 4 step practice include this. Did this discussion of t move somewhere else in the new arrangement of material? Just trying to make sure i don't miss something.

Cali...we are starting inference for means next week Tuesday, so we should be able to get lesson up before you have to teach them.

Any idea on when the blog post for means will be posted? I LOVE your resources and want to be able to use them by 2/23. Thanks for everything!

Hi Luke,

Did you update the reviews/big ideas for Chapter 8? It looks like I can just delete the column for means, but wasn't sure if you did something different. Thanks.