eNotes: Quality Control
   



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15.3 PRACTICE PROBLEMS


1. You have collected the data below as part of a 2-n factorial experiment for making slush. There are two process variables you control, a quantity of sugar and a quantity of salt that is added to the water, these modify the freezing temperature of the slush. Draw effects graphs and calculate the effects of changing the parameters. State whether they are dependant or independent.





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