STAT 20 Study Guide - Quiz Guide: Shobana, Posttraumatic Stress Disorder, Cruciferous Vegetables

• School: Berkeley
• Department: Statistics
• Course: STAT 20
• Professor: All

Document Summary

Answer yes or no and please explain your answer. (2 points: classify the following variables as qualitative or quantitative. In each ward, the percentage of registered democrats that vote is higher than the percentage of registered republicans who vote. True or false: for the city as a whole, the percentage of registered democrats who (3 points) vote must be higher than the percentage of registered republicans who vote. Explain your reasoning: a few years ago, there was an article in science daily about the relationship between ptsd (post-traumatic stress. An investigator examined the prevalence of heart disease, ptsd and other problems in more than 4,000 vietnam veterans and found that vietnam veterans who experienced ptsd were twice as likely to die from heart disease as veterans without ptsd. These studies were so encouraging that two randomized controlled experiments were done, one for colon cancer and the other for lung cancer.