ENV100Y5 Lecture 3: ENV100 Lecture 3
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ENV100Y5 Full Course Notes
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A provisional statement that proposes a possible explanation for a particular. We propose and test hypotheses to understand patterns and relationships in nature, and to understand the effects and consequences of human activities on the environment. When tested, give rise to lots of other hypotheses. Once tested, you connect to other ideas make ideas flow. Statement of no effect x & y have no correlation. Form an alternative not always the opposite of the hypothesis, just disproves. H a : cigarette smoking increases probability of developing certain types of cancer. H 0 : cigarette smoking has no effect on probability of developing cancer (not opposite & saying that it decreases probability) If cigarette smoking increases the probability of developing certain types of cancer, Then the incidence of lung cancer should be higher in a group of heavy, lifetime smokers than in a comparable group of non-smokers.
