ACS 401 Study Guide - Midterm Guide: Squared Deviations From The Mean, Confidence Interval, Standard Deviation

• School: Ryerson University
• Department: Arts and Contemporary Studies
• Course: ACS 401
• Professor: Tuna Baskoy

Document Summary

There are two types of statistics: descriptive statistics. Summarizes the distribution of a single variable. Describes your sample, e. g percentages (%), averages, charts, graphs, etc: inferential statistics. Used to make generalizations (or infer) from samples to populations. Make conclusions about the differences between groups or relationships between variables. Theory: a set of rules or principles that can explain all observations about a topic, and from which new hypotheses can be derived. Concepts: define the terms were use, and are often abstract. Hypothesis: a tentative, testable, and falsifiable statement (or prediction) about the relationship between two or more variables. E. g people who have completed more years of schooling have higher annual incomes. Population: the complete collection of all elements (people, political parties, provinces, countries) the researcher is interested in. E. g average age of first year university students in. Sample: the subset of members selected from target populations, that is used to test a hypothesis.