t-distribution is a bell-shaped distribution with the same mean and
a larger distribution than the standard normal distribution.
When working with the t-distribution, always remember the degrees of
freedom, ν = n − 1.
t-distribution when the sample is from a normal distribution
and when the population standard deviation is unknown.
Estimation of Population Mean: Sigma Not Known
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.