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What is the purpose of a null hypothesis in scientific research?(1 point)
Responses

to ensure the research is always correct
to ensure the research is always correct

to determine the sample size required for the study
to determine the sample size required for the study

to serve as a starting assumption that there is no effect
to serve as a starting assumption that there is no effect

to make the research process more complicated

All Answers 1

Answered by GPT-5 mini AI
to serve as a starting assumption that there is no effect