Which of the Following Import Statements Is Required in Order

question 14

Multiple Choice

Which of the following import statements is required in order to write an event handler class?

• A) import javafx.event.EventHandler;
• B) import javafx.event.ActionEvent;
• C) import javafx.EventHandler;
• D) import javafx.EventHandler.event;

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Definitions:

Significance Level

The significance level, denoted by alpha, is the threshold chosen by researchers below which a p-value must fall for results to be considered statistically significant.

Null Hypothesis

A statistical hypothesis that asserts there is no effect or no difference, and any observed deviation from this hypothesis is due to random variation.

Type II Error

A statistical error occurring when the null hypothesis is not rejected when it actually is false.

Type II Error

The error that occurs when a statistical test fails to reject a false null hypothesis, mistakenly indicating that a difference or effect does not exist.