Well designed and conducted surveys use chance, random samples, and have no sources of bias.
Population: Entire group of individuals about which we want info.
Sample: Part of the population from which we collect information.
Bias: Factor which can favor certain outcomes.
Sampling Methods include Simple Random Sampling (SRS), Stratified Random Sampling, and Cluster Sampling.
Planning and Conducting Surveys
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
The book includes five full length practice exams in addition to a full 15 chapters of review that is divided into the four major themes on the statistics test: Exploratory Analysis, Planning a Study, Probability, and Statistical Interference.
The book includes 2 full length practice tests with detailed answers and explanations, a full review of the subject material presented, and step-by-step techniques for cracking each type of statistical analysis question.