Does hypothesis testing leave your head spinning and you wondering what to do next? Don’t let confusion follow you into your exams. Start making sense of hypothesis testing, one clear step at a time.
You’ll learn basic hypothesis testing from a cartoon story about Charlie, who inherited his grandfather’s secret fuel formula.

This formula promises 30% more miles per gallon of fuel, and a firm is ready to pay over a million dollars if it passes the lab tests.
Follow Charlie and Professor Stats Dog as the computer results come in. Discover hypothesis testing step by step as you find out whether Charlie’s formula meets the firm’s requirements.

Here’s What You’ll Learn

1. How to apply hypothesis testing in a business setting.
2. The steps of hypothesis testing explained in plain English.
3. A fun cartoon story that helps the ideas make sense.
4. Practice questions that prepare you to use these ideas on exams and at work.
5. Answers explained so you understand the reasoning and recognize similar problems.
6. A handy Remember section that sums up the concepts for studying and for allowed open-book exams.
7. Core concepts that help you move forward:
   • What H₀ and Hₐ mean.
   • How to compare a p-value with the alpha level.
   • How Type I and Type II errors differ.

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Start today so you can approach your next study session feeling confident instead of feeling lost.