To specify weights  
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1    Choose Stat > DOE > Factorial > Analyze Factorial Design > Options.

2    In Weights, enter a column that contains weights for your response. Use one of the following columns:

·     The weight column that you stored for your response in Analyze Variability - Storage

·     Another weight column that is appropriate for your response  

The weight column must be the same length as the response column. If you have multiple response variables with different weight columns, you must run the analysis for each response separately.