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Probability & Statistics
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Statistical Inference
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Hypothesis testing
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394.
Interpreting Failure to Reject Null
medium
In an A/B test, you fail to reject the null hypothesis. What can you validly conclude?
A
The alternative hypothesis is false and can be safely ruled out for all future experiments
B
The null hypothesis is true and the two groups are definitively equivalent in the underlying population
C
The data lacks sufficient evidence of a difference between groups
D
The experiment was underpowered and should be rerun with a larger sample to detect any true effect
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