JMP Tutorial:

One Sample t Test

Click the link below and save the following JMP file to your Desktop:

Now go to your Desktop and double click on the JMP file you just downloaded.

This action will start JMP and display the content of this file:

Click the **Analyze** menu, then select **Distribution**.

Click the **Pretest** column, then click **Y, columns**.

Click **OK**.

The 95% confidence interval for the mean is displayed under **Summary Statistics**.

If you want to produce, for example, a 90% confidence interval for the mean,
click the red down arrow next to **Pretest**, select **Confidence Interval, **select** 0.90**.

You should see the following:

**Hypothesis Testing**

Click on the red down arrow next to **Pretest** and select **Test Mean**:

You should see:

Suppose your Null Hypothesis is that the mean is 30. Type 30 in the **
Specify Hypothesized Mean** text box and click **OK**.

Prob>|t| = .0077 is the p-value for H_{A}: μ ≠
30

Prob>t = .9961 is the p-value for H_{A}:
μ > 30

Prob<t = .0039 is the p-value for H_{A}:
μ < 30