For this problem you will need to design an
experiment that can help you show that not adding
the zip code on a letter may be affected or not.
In order to receive all 4 points possible for
this extended response question, you want to
make sure that you address the four separate
questions in the problem. Be clear and be specific
with your responses.
Let's take care of each question separately.
Begin by answering the first one, create a plan
for an experiment to test your answer to
the question, 'Does failing to add a zip code
to
an address on a letter affect the delivery
of the letter?" Remember to be clear and specific.
