Use the Following Information for Following Questions

Essay

Use the following information for following questions:
A group of 500 patients who suffer from severe migraines were asked to participate in a study to
determine the effectiveness of a new medication. The patients were randomly divided into two
groups, one that was given the actual medication, and one that received a placebo pill. A good
outcome was defined as a reduction in the number of migraines during a month's time. The
results of the study are below.
-Can we conclude that the reduction of migraines was caused by the new medication? Explain your reasoning.