In an increasingly data-driven world, it is more important than ever for students as well as professionals to better understand basic statistical concepts. 100 Questions (and Answers) About Statistics addresses the essential questions that students ask about statistics in a concise and accessible way. It is perfect for instructors, students, and practitioners as a supplement to more comprehensive materials, or as a desk reference with quick answers to the most frequently asked questions.

How Does Inference Work, and What Is an Example?

How Does Inference Work, and What Is an Example?

Inference is the process through which scientists infer, based on the results from a sample, the characteristics of a population. Its success depends upon how accurately the sample represents the population, how reliable and valid the instrumentation is, and other factors. When done correctly, the inferential method is a very powerful and efficient tool.

First, let’s look at an example of a research project to examine the steps used in the inferential method.

Luis Facorro and Melvin Defleur examined differences between American and Spanish persons in their recall of different news stories. Participants were exposed to one of three local news stories presented via newspaper, computer screen, television, or radio. In sum, the researchers found differences in ...

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