Introduction to Hypothesis Testing for Proportions A confidence interval on the population proportion provides a set of plausible values for that proportion as we saw in the last lesson. If the proportion is hypothesized to be, say, 0.4, but the interval does ...
Introduction to Confidence Intervals and Tests of Hypotheses for Means The basic ideas of confidence intervals and hypothesis testing were used to develop large sample confidence intervals and hypothesis tests for population proportions. Here, we will learn ...
Introduction to The Matched-Pairs Design for Comparing Two Treatment Means Study Guide Thus far, we have only attempted to set confidence intervals on proportions or means based on a sample from a single treatment or population. Now we want to conduct studies ...
Find practice problems and solutions for these concepts at Confidence Intervals for Comparing Two Treatment or Population Means Practice Problems. Matched-pairs and two-group ...
Introduction to Analyzing Categorical Data In recent lessons, the responses have been numerical. When working with two treatments or populations, the treatments or populations may be thought of as categorical explanatory variables. In this lesson, we will ...
Statistics Practice Quiz The test has 50 multiple-choice questions covering the topics you studied in this statistics book. Although the format of the test is similar to that of the introductory test, the questions are different. Take as much time as ...
To review these concepts, go to Populations, Samples and Variables Study Guide. Populations, Samples, and Variables Practice Questions Practice ...
To review these concepts, go to Conducting a Study and Statistics Planning Study Guide. Conducting a Study and Statistics Planning Practice Questions Practice ...
To review these concepts, go to Describing and Displaying Categorical Data Study Guide. Describing and Displaying Categorical Data Practice Questions
To review these concepts, go to Dotplots and Stem-and-Leaf Plots Study Guide. Dotplots and Stem-and-Leaf Plots Practice Questions Practice ...