Please help this young person develop their experiment design and analysis procedure.

A local 11 year old student who is studying science heard you are taking this class. This particular young scientist happens to be interested in doing a science fair project on the effectiveness of laundry products using a new high-tech front-loading washing machine. Please help this young person develop their experiment design and analysis procedure.Some things to consider:1 types of detergent and other possible variables. 2 response variable(s). 3 how you make samples. 4 data analysis procedure. 5 Risks in drawing conclusions. Is this experiment useful for other models, brands, serial numbers of the same model.?