STAT 2606 Lecture Notes - Lecture 3: Statistical Process Control, Random Number Table, Response Bias
Document Summary
Review: define statistics, distinguish descriptive & inferential statistics, define population, sample, parameter, statistic, All members of a population may not be available. Four step process for creating a survey: decide what is being studied and how to ask the questions, generate questions that are either open or closed (choice of answers). Questions should be short and easy to read and understand: compile or put together the survey. Order of questions is important as the previous question may influence answers to the next one: test pilot the survey for reliability and validity. Respondents given same questions in same order in which answers are rated. Involving 4-15 people and approximately 10 issues. The sampling plan or experimental design determines the amount of information you can extract, and often allows you to measure the reliability of your inference. A random sample is a sample selected from a population so that:
