Determine whether the conditions are met for doing inference about a difference between two means.

Construct and interpret a confidence interval for a difference between two means.

Calculate the standardized test statistic and P-value for a test about a difference between two means.

Perform a significance test for the difference between two means.

• Slides

• Read this and do a HT and CI: Glasses aren't just good for your eyes. They can be a boon to income, too (make up a standard error)