You want to determine the effect of soap on bacterial colonies. In order to make sure that the environment does not affect your experiment, you divide 12 different petri dishes in half - one side is exposed to soap, the other is a control. You measure the number of colonies that grow in each petri dish and come up with the following results:

petri dish 1 2 3 4 5 6 7 8 9 10 11 12
soap 10 5 7 10 19 11 13 17 19 8 11 10
control 20 17 11 17 26 18 21 25 24 17 17 1

Perform a complete hypothesis test to see if there is a difference in bacterial colonies between the soap and control dishes.