8.3.3 - Minitab Express: Paired Means Test
The steps for constructing a confidence interval or conducting a paired means \(t\) in Minitab Express are identical. The output that procedure provides includes both the confidence interval and the \(p\)-value for determining statistical significance.
MinitabExpress – Conducting a Paired Means Test
Let's compare students' SAT-Math scores to their SAT-Verbal scores.
- Open the Minitab Express file:
- On a PC: In the menu bar select STATISTICS > Two Samples > Paired t
- On a Mac: In the menu bar select Statistics > 2-Sample Inference > Paired t
- Double click the variable SATM in the box on the left to insert the variable into the Sample 1 box
- Double click the variable SATV in the box on the left to insert the variable into the Sample 2 box
- Click OK
This should result in the following output:
|Mean||StDev||SE Mean||95% CI for \(\mu_d\)|
\(\mu_d\) : mean of (SATM - SATV)
|Null hypothesis||H0: \(\mu_d\) = 0|
|Alternative hypothesis||H1: \(\mu_d\) ≠ 0|
Select your operating system below to see a step-by-step guide for this example.
On the next page, the five-step hypothesis testing procedure is used to interpret this output.