JMP T-test Screenshot Tutorial

Independent Samples t-test can be run using Analyze -- Fit Y by X.

Note the Oneway grid above. JMP will determine whether to run a Bivariate, Oneway, Logistic, or Contigency analysis based on the measurement level of the variables (columns) chosen for the Y-Response and X-Factor. To run a t-test (one-way). The Y Response must be continuous and the X-Factor must be a categorical variable with two groups. Click on the appropriate columns and either drag them to the appropriate box or click on the Y-Response or X-Factor buttons to move the columns(variables) to the appropriate boxes. Click OK.

The Oneway Analysis graph will appear. Note the distribution of weight of the Females and Males is not very different. Click on the Red down arrow to bring up a the analysis menu.

There are a number of options available through this menu. For our purposes, click on the t-test option.

Above is the output for a t-test. The alpha level can be changed, the power estimated etc. by clicking again on the down red arrow (JMP hot spot).

For our purposes, we are going to add means and standard deviations to our output.

For Additional Questions or Assistance Contact Tina Ughrin