ENV100Y5 Lecture Notes - Lecture 4: Null Hypothesis, Cholangiocarcinoma, Environmental Science

• School: UTM
• Department: Environment
• Course: ENV100Y5
• Professor: Monika Havelka

Document Summary

Env100 session 4: how science is done: an aside on hypotheses (16-9-15) A hypothesis that : incorrectly identifies a casual factor, is untestable, only partially explains a phenomenon, is not in line with current thinking in the field, all of the above. The only thing that truly makes a hypothesis bad is that it"s untestable. Hypothesis a provisional statement that proposes a possible explanation for a particular observed phenomenon. Environmental science we propose and test hypotheses to understand pattern in nature, and to understand the effects and consequences of human activities on the environment. Good hypothesis when tested, give rise to lots of other hypotheses. What is a hypothesis? types of lung cancer. What is a null hypothesis? types of lung cancer. A good hypothesis is smart: ho: cigarette smoking increases the probability of developing certain, specific, measurable, achievable, realistic, time-bound.