What is the null hypothesis?
AP Biology: Experimental Design

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Biology
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
The hypothesis that there is no significant difference between treatments, any observed difference being due to chance.
2.
FLASHCARD QUESTION
Front
What is a control strain in an experiment?
Back
A group that does not receive the experimental treatment, used for comparison.
3.
FLASHCARD QUESTION
Front
What is a dependent variable?
Back
The variable being tested and measured in an experiment.
4.
FLASHCARD QUESTION
Front
What is an independent variable?
Back
The variable that is manipulated or changed in an experiment.
5.
FLASHCARD QUESTION
Front
What is the purpose of a control group?
Back
To provide a baseline for comparison against the treatment group.
6.
FLASHCARD QUESTION
Front
What does it mean to reject the null hypothesis?
Back
It means that the results of the experiment show a significant difference between the treatment and control groups.
7.
FLASHCARD QUESTION
Front
What is an experimental treatment?
Back
The specific condition or intervention applied to the experimental group.
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