A standardized test is used to measure the aggression (ranging from 0 - 300) of individuals from two groups.The following results were found:

Group1104,109, 127, 143, 187, 204, 209, 266, 277

Group262,82, 89, 90, 101, 106, 109, 109, 205

1. Find the median of the two samples combined.
2. Conduct a median test to determine if there is a significant difference between these groups.
3. "Is there a significant difference between the two groups and level of aggression? If so, what is the level of significance?"
4. "Using the same data, conduct a Mann-Whitney U test of significance."
5. "Is there a significant difference between the two groups and level of aggression? If so, what is the level of significance?"