Ribbon bar. Select the Graphs tab. In the More group, click Input Data Graphs and from the Box-Whisker submenu, select Mean/SE/1.96*SE...

Classic menus. From the Graphs - Graphs of Input Data - Box-Whisker submenu, select Mean/SE/1.96*SE...

...to create a box plot that shows the mean (small box in the plot) of the variable surrounded by a larger box. However, in this plot, the larger box represents ± 1 times the standard error. If the distribution is normal, then the whiskers in this plot represent a 95% confidence interval defined as the variable mean ± 1.96 times the variable standard error.