9.2.2.1.1 - Video Example: SAT-Verbal Scores

Research question: Do students who complete test prep program A have higher SAT-Verbal scores than students who complete test prep program B?

The following data were collected from representative samples of students who were randomly assigned to complete either program A or program B.

  Program A Program B
\(\overline X\) 530 510
\(s\) 90 80
\(n\) 35 30

The sampling distribution may be approximated using the t distribution because \(n_A \ge 30\) and \(n_B \ge 30\). 

Let's take a look at how we can go about solving this research question using Minitab Express.