PHC 4069 Lecture Notes - Lecture 1: Biostatistics, Descriptive Statistics, Simple Random Sample
Document Summary
Understand the true nature of our universe. The science of collecting, organizing, summarizing, analyzing, and making inferences from data. Branch of statistics applied to health-related research and data. Important research tool to help analyze and interpret data in order to understand and improve human health. Statistics or biostatistics is divided into two broad areas: Process of investigating scientific questions to find answers. Observations or measurements for variables obtained from each study subject. Set of observations and/or measurements made on some part of the universe to address a particular information need or question. Usually have specific structure, with observations/measurements for one or more variables made on a number of individuals from the population of interest. Identify variables needed to answer the research questions. Variables are characteristics or attributes that change or vary. Identify the target population and define the eligibility criteria. Population is the entire collection of individuals or measurements about. Research 4: design study which information is desired.
