To change the box endpoints, box width, and display whiskers
main topic      examples 

1    Double-click all interquartile range boxes. See Selecting groups and single items.

2    Click the Options tab.

3    Under Box endpoints, choose one of the following:

·    Quartiles to display the box bottom at the 1st quartile (25th percentile) and box top at the 3rd quartile (75th percentile).

·    Hinges to use the hinges for the box endpoints.

·    Percentile to specify the percentiles for the box bottom and top, then enter one number between 0 and 50 for the percentile.

4    Under Whiskers, choose one of the following:

·    None to suppress display of whiskers.

·    Show to display whiskers.

5    Check Box width proportional to sample size to make the width of each box proportional to the square root of the number of observations in each group.

6    Click OK.