Assignment 28

(I didn't go over the Chi-Square assignment since we did all but three problems in class =] )

Questions 1-3 should be a great review of regression. We will review this in class, but you should be able to get these pretty easily.

We will be doing questions 4-8 in class. We haven't gone over this concept yet.

Questions 8 until the end are GREAT final review questions. Basically, this is taking ALL of the tests we have done and making you decide which one we should be using!

Here's a quick reminder of what the three we are comparing here are:

Chi-Square: Compares multiple proportions. AKA, we need multiple categorical variables (more than two). This means we will always be using a two-way table.

Regression: Compares two quantitative variables. (Like weight versus height). We use scatterplots to recognize correlation in these (using best fit lines).

ANOVA: Compares multiple means. (like I want to know if a certain scent makes people stay in a restaurant longer, so I compare the mean time of three, like lemon, sage and lavender)

Hope that helps!
-Hillary