Examlex
Among ground squirrels, __________ were more likely than ___________ to cooperate in mutual defense of their offspring.
T Procedure
A statistical method used to estimate the mean of a population or compare the means of two populations, especially when the sample size is small and the population variance is unknown.
Sample Size
The count of measurements or repeated instances in a statistical sample.
Confidence Interval
A range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter with a specified level of confidence.
Confidence Level
The percentage of all possible samples that can be expected to include the true population parameter within their estimated range.
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