In the court case analogy, what does the null hypothesis represent?

• A. The person is guilty
• B. The person is innocent
• C. The jury’s verdict
• D. The evidence is insufficient

Answer: (B)

In hypothesis testing, the null hypothesis is the default assumption about the situation that you test against the data. In the court-case analogy, that default is that the person is innocent. You gather evidence and weigh it against a predefined standard. If the evidence is strong enough to meet that standard, you reject the innocent hypothesis and conclude guilt. If the evidence isn’t strong enough, you don’t reject the innocent hypothesis, so the person remains not proven guilty. The option about guilt describes the conclusion reached after testing, not the initial assumption. The jury’s verdict is the outcome, not the hypothesis itself, and saying the evidence is insufficient describes how strong the data are, not the statement you start with.