Examlex
If the most optimistic and pessimistic times for a task are 3 and 15 days respectively,then the variance for the duration of the activity is ______.
Obtained Value
The actual value or result achieved in an experiment or study, typically used in statistical analysis to compare against theoretical values.
Critical Value
The threshold value that the test statistic must exceed in order for the null hypothesis to be rejected in a hypothesis test.
Significance Level
The threshold chosen by the researcher for rejecting the null hypothesis; commonly set at 0.05 or 5%.
Null Hypothesis
A default hypothesis that there is no difference or effect, used as a starting point for statistical testing.
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