On Lenovo laptop assembly

This question is actually meant to address notebook assembly lines in general, but since I own a Lenovo, I'm posting it here.

Anyway, I just wondered if all laptops are subjected to a battery of tests (such as pressure tests, multiple hinge opening and closing, humidity tests, etc) prior to shipping and release? Or, would that only apply to:
- the prototype of each model? (or they just do random sampling)
- certain models (high end, most likely)
- certain laptop brands

 

I work in manufacturing as a process engineer. Although I don't work on electronics I can tell you that a certain number of products are tested in each batch based on their likeliness to fail.

For example, if the hinges break all the time, you may see every 10th laptop checked. If the keyboard doesn't work right rarely, they may check every 100th laptop.

 

Having worked in a similar capacity to Paul, I can state that each individual machine receives minimal testing, if any. Really, it would be best to describe the process as "inspection".

But small samples are taken from different "lots", and subjected to intense testing. If the lot was from an supplier, we would accept or reject the entire lot based on the testing of a small sample.

 

I don't work in production, but I do know that every company applies statistics by testing random samples to learn about the population. If a test shows significance, than like SpacemanSpiff said, an entire batch of laptops/supplies can be rejected.