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Sample Size for Distribution Simulation Testing

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PkgTest

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#11
#11
Thanks Bev D. Very informative. I totally understand your point of testing only one part at the min and one at the max limits, makes complete sense. The biggest hurdle will be getting my company to produce those extremes for testing. Our consumer products are relatively inexpensive (compared to medical devices). Many of the products are liquid with the only real potential damage being leakage, while other products are solids that are transit sensitive toward breakage, making the product unusable by the customer. Our testing mostly boils down to how effective the package is in protecting the product. If I have this correct, the min and max limits being the dimensional and molding tolerances of the bottle/jar/tube neck finish, the tolerances of the cap finish, the upper and lower torque range, the strength/thickness/stiffness of the paperboard carton (if used), and the quality of the package decoration (inks, coatings, etc.) to resist scuffing. If the product is transit sensitive, then the min and max tolerances of the product specs would be included along with the tolerances of fill volume, and other processing conditions (heating/cooling time, etc.).
 
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Bev D

Bev D

Heretical Statistician
Staff member
Super Moderator
#12
#12
Yes doing the right thing is often difficult. Too many people want to rely on the 'alchemy' magic of statistical sampling to save them from doing real engineering work. sad but true.
 
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