This week we will look at how to test hypotheses and make confidence intervals for categorical data. These are the first two formulas in the inference about proportions section of the Interactive Formula Sheet.

### Monday, April 6

**Goal.** To introduce the one-sample hypothesis test for proportions.

**Step 1.** Look at these notes: One sample inference for proportions

**Step 2.** Try this workshop: Psychic testing

**Step 3.** Here is a video with my solutions to the workshop, and an explanation of why I'm not really psychic, in case you were wondering: YouTube

**Step 4.** I've posted the homework for this week. You should try to solve all of the problems by Friday. On Friday, I'll post a form where you can submit some of your solutions online.

### Wednesday, April 8

**Goal.** To introduce one-sample confidence intervals for proportions.

**Step 1.** Try this workshop: Born in Virginia

**Step 2.** Here are my solutions & comments for the workshop: YouTube

**Step 3.** Let me know if you have any questions about the workshops or homework. Send me e-mail questions any time. I'm available for Zoom meetings if you need more help.

### Friday, April 10

**Goal.** Catch-up and review one-sample inference for proportions.

**Step 1.** Finish this week's homework and submit your solutions using this GoogleForm by 11:59pm tonight.

That's it for today! Next week we'll cover two sample inference about proportions.