To plot two one-sided CUSUMs
main topic     see also         

1    Choose Stat > Control Charts > Time-weighted Charts > CUSUM.

2    Do one of the following:

·    If subgroups are in one or more columns, choose All observations for a chart are in one column, then enter one or more columns. In Subgroup sizes, enter a number or a column of subscripts.

·    If subgroups are in rows, choose Observations for a subgroup are in one row of columns, then enter a series of columns.

3    Click CUSUM Options, then click the Plan/Type tab.

4    Under Type of CUSUM, choose One-sided (LCL, UCL).  

5    If you like, use any dialog box options, then click OK in each dialog box.