STA-1013 Lecture Notes - Lecture 6: Statistical Significance, Weighted Arithmetic Mean, Order Of Newfoundland And Labrador
Document Summary
Chapter 6: a set of measurements or observations in a statistical study is said to be statistically significant if it is unlikely to have occurred by chance. Quantifying statistical significance: we determine statistical significance by using probability to quantify the likelihood that a result may have occurred by chance. If yes, then we say that the difference is statistically significant at the. If no, the observed difference is reasonably likely to have occurred by chance, so we say that it is not statistically significant: other probabilities are sometimes used, such as 0. 1 or 0. 01. Outcomes- the most basic possible results of observations or experiments. Event- a collection of one or more outcomes that share a property of interest. Expressing probability- the probability of an event, expressed as p(event), is always between 0 and 1 inclusive: 0 means it is impossible, 1 means it is certain to happen.
