1. Cloud Seeding. What is the experimental unit in the cloud seeding experiment?
2. Cloud Seeding. Randomization in the cloud seeding experiment was crucial in assessing the effect of cloud seeding on rainfall. Why?
3. Cloud Seeding. Why was it important that the airplane crew was unaware of whether seeding was conducted or not?
4. Cloud Seeding. Why would it be helpful to have the date of each observed rainfall?
5. Agent Orange. How would you respond to the comment that the box plots in Display 3.3 indicate that the dioxin levels in the Vietnam veterans tend to be larger since their values appear to be larger?