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!

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