Examlex
F-21 has a half-life of 5 seconds. How long will it take a 50 g sample of F-21 to decay to a mass of 12.5 g?
Significance Level
See alpha level.
Type I Error
A statistical error occurring when a true null hypothesis is incorrectly rejected.
Type II Error
A statistical mistake occurring when a test fails to reject a false null hypothesis, incorrectly indicating no effect or difference when one actually exists.
Significance Level
A statistical threshold that determines the probability of rejecting the null hypothesis when it is true, commonly set at 0.05 or 5%.
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