Examlex
Which of the following is NOT a known risk factor for cancer?
Alpha
Often referred to as the level of significance in hypothesis testing, it represents the threshold at which the null hypothesis is rejected.
T-test
A statistical test used to compare the mean of two groups to see if there is a significant difference between them.
Null Hypothesis
The hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.
Alpha
The threshold of probability at which the null hypothesis is rejected in statistical testing, often set at 0.05.
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