Hypothesis testing

Flashcard
•
Mathematics
•
11th - 12th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the null hypothesis (H0) in hypothesis testing?
Back
The null hypothesis (H0) is a statement that there is no effect or no difference, and it serves as the default assumption that is tested against an alternative hypothesis.
2.
FLASHCARD QUESTION
Front
What is the alternative hypothesis (Ha) in hypothesis testing?
Back
The alternative hypothesis (Ha) is a statement that indicates the presence of an effect or a difference, and it is what the researcher aims to support.
3.
FLASHCARD QUESTION
Front
What is a Type I Error in hypothesis testing?
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 in hypothesis testing?
Back
A Type II Error occurs when the null hypothesis is not rejected when it is actually false.
5.
FLASHCARD QUESTION
Front
What does the significance level (α) represent in hypothesis testing?
Back
The significance level (α) is the probability of making a Type I Error, commonly set at 0.05 or 0.01.
6.
FLASHCARD QUESTION
Front
When should you use a t-test instead of a z-test?
Back
A t-test should be used when the sample size (n) is less than 30 and/or when the population standard deviation is unknown.
7.
FLASHCARD QUESTION
Front
What is the first step in conducting a hypothesis test?
Back
The first step is to state the null hypothesis (H0) and the alternative hypothesis (Ha).
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