STATS 7 Lecture Notes - Lecture 15: Type I And Type Ii Errors, Randomized Experiment, Statistical Inference
Document Summary
Extent to which data descriptions can be generalized. Whether or not randomization was used to assign conditions. Fundamental rude for using data for inference. Available data can be used to make inferences about a much larger group if the data can be considered to be representative with regard ro the questions of interest. Randomized experiments, observational studies, and causal conclusion. Conclude a causal relationship established when not warranted by the way the study was conducted. The cause and effect relationships can be inferred from the randomized experiments but not from observational studies. Using nonstatistical considerations to assess cause and effect. Hints that does not prove cause and effect from observational studies. There is a reasonable explanation of cause and effect. Potential confounding variables are ruled out by measuring and analyzing them. 17. 2 some reasons statistical methods are useful: Society, want to have some control over things. As intelligent and curious beings, we want to understand things.
