A family made the observation that more expensive brands of popcorn seem to produce Discovery Education
more popped kernels than cheaper brands of popcorn. In order to test this hypothesis,
the family conducted an experiment in which they followed the procedures below:
•
The family bought 2 differing brands of popcorn to test: Wilbur Bockenreder Popcorn
and PopWhisper.
•
They measured 1 cup of kernels and popped : bowls of each type of popcorn. They
ensured they popped the popcorn for the same amount of time, used the same wattage
microwave, and did not have any other ingredients added to the kernels (butter, etc).
They counted and recorded the number of unpopped kernels in each of the 10 bowls.
As they analyzed the data collected, they were able to conclude that their initial
hypothesis was supported.
They formed the conclusion that the more expensive brand of popcorn popped more
kernels than the cheaper brand of popcorn.
From this experiment, let's answer some questils.
Was this controlled experiment?
no or yes