Asked by Terri

A supermarket chain wants to verify that the bottler of their store brand of soda is in fact filling the cans to the specified volume. They took several “cubes” from the shelves and measured the amount in each can. Is this an observational study or a designed experiment. Explain why you chose your answer.
Answered by PsyDAG
What are "cubes"?

What did <I>you</I> choose?
Answered by Terri
I think the cubes are the packages of soda, maybe a large quantity.
I said it was observational study because there was no treatment imposed.
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