After a Zombie epidemic hit New York, scientists at a major pharmaceutical firm investigated the effectiveness of three compounds (compound X, compound Y, and compound 2) in hopes of finding a cure. They captured 300 zombies, and separated them into two blocks: Block A contained 180 zombies with bodies that have been dead for more than 24 hours. Block B contained the 120 zombies with bodies that have been dead for less than 24 hours. Zombies in Block A were randomly assigned injections of either compound X, Y or Z. Similarly, the zombies in Block B were randomly assigned injections of either compound X, Y, or Z. After 2 days, the scientists compared the percentage of infected cells in the blood between the different treatment groups in each lock. dentify the following: . The subjects studied [Select] The number of factors in the experiment and the number of levels of each factor. [Select] The number of different treatments [Select] The design [Select]