Significance Tests
Flashcard
•
Mathematics
•
11th - 12th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a significance test?
Back
A significance test is a statistical method used to determine if there is enough evidence to reject a null hypothesis in favor of an alternative hypothesis.
2.
FLASHCARD QUESTION
Front
What are the null and alternative hypotheses?
Back
The null hypothesis (H0) is a statement that there is no effect or no difference, while the alternative hypothesis (Ha) is what you want to prove, indicating that there is an effect or a difference.
3.
FLASHCARD QUESTION
Front
What is a Type I error?
Back
A Type I error occurs when the null hypothesis is rejected when it is actually true.
4.
FLASHCARD QUESTION
Front
What is a Type II error?
Back
A Type II error occurs when the null hypothesis is not rejected when it is actually false.
5.
FLASHCARD QUESTION
Front
What does a p-value represent?
Back
A p-value represents the probability of obtaining test results at least as extreme as the observed results, assuming that the null hypothesis is true.
6.
FLASHCARD QUESTION
Front
What is the significance level (alpha)?
Back
The significance level (alpha) is the threshold for rejecting the null hypothesis, commonly set at 0.05 or 0.01.
7.
FLASHCARD QUESTION
Front
What does it mean to reject the null hypothesis?
Back
Rejecting the null hypothesis means that the evidence suggests that the alternative hypothesis is true.
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