Educational film series
Statistically Speaking
Thirty-two video lessons are uniquely embedded in a special edition of W.H. Freeman’s StatsPortal. Instructors select from two textbook options, and students purchase an eBook/StatsPORTAL token.
Titles in this series
33 films
2011 · 30m
Bootstrap Methods & Permutation Tests
In this lesson, you'll learn what statisticians do when they need to analyze data that does not meet…
2011 · 30m
Cautions About Inference
Statistics is a powerful tool for discovering how the world works, but we must be cautious when interpreting…
2011 · 30m
Chi-Square Tests
This lesson goes a step farther in what can be done with categorical data. Researchers often look at…
2011 · 30m
Choosing Inference Procedures
This lesson is a review of what you have learned so far in the course. You have learned…
2011 · 30m
Comparing Two Means
In this lesson we learn about a second and important t procedure, the two-sample t test. This test…
2011 · 30m
Comparing Two Proportions
This lesson extends what you learned in Lesson 19 about single-sample proportions to the concept of two-sample proportions.…
2011 · 30m
Confidence Intervals
Confidence intervals are something we see in the news almost daily, most frequently as polling results. They are…
2011 · 30m
Contrasts: Comparing Means
This lesson continues the analysis of multiple means begun in the previous lesson on ANOVA. It introduces yet…
2011 · 30m
Describing Distributions
Professionals of all types must make sense out of the huge amounts of data they collect on a…
2011 · 30m
Displaying Data
This lesson begins by explaining statistics and how it is used by scientists. You will learn that statistics…
2011 · 30m
Inference for One Mean
This lesson pursues a more realistic test of significance than the z test discussed in Lesson 15. In…
2011 · 30m
Inference for One Proportion
This lesson returns to the topic of proportions, applying what you have learned about confidence intervals, margins of…
2011 · 30m
Inference for Regression
This lesson returns to the topic of regression introduced in Lessons 5 and 6. While researchers benefit from…
2011 · 30m
Introduction to Inference
Inferences are something we make every day. Every time we draw a conclusion based on evidence, we are…
2011 · 30m
Introduction to Statistics
We are bombarded with statistics every day. But what do all these numbers mean and who really uses…
2011 · 30m
Logistic Regression
This lesson deals with a special type of regression in which the response variable is categorical and the…
2011 · 30m
More on Experimentation
Experimental studies are powerful tools that researchers use to determine cause and effect relationships. These studies are picked…
2011 · 30m
Multiple Regression: Building the Model
This lesson expands on the last lesson on regression to consider cases in which there is more than…
2011 · 30m
Multiple Regression: Refining the Model
This lesson further examines multiple regression by closely examining the predictor variables involved in the regression model. Researchers…
2011 · 30m
Nonparametric Tests
So far, all of the tests introduced in this course have required that the data have a Normal…
2011 · 30m
Normal Distributions
As you have seen in earlier lessons, statisticians have visual and numerical ways of describing a set of…
2011 · 30m
One-Way ANOVA
This lesson introduces another type of statistical test that evaluates the means of numerical data. In previous lessons,…
2011 · 30m
Probability
What are the chances?" We think this many times a day. Why is it raining when the weatherman…
2011 · 30m
Producing Data: Experimentation
Every day, the media bombard us with the results of recent statistical studies. Statements like, "Studies show our…