A census is a
sample survey that attempts to include the entire population.
A sample survey
is a study of some group of individuals selected from a population
to represent some larger group.
deliberately imposes some treatment on subjects in order to observe
a response while an observational study does not attempt to
influence the a response.
Methods of Data Collection
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 and CD package 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.