Examlex
Sampling error may be reduced by increasing the sample size but non-sampling error cannot be reduced by increasing the sample size.
F-distribution
A probability distribution that arises in the analysis of variance (ANOVA), used to compare variances and determine statistical significance.
T-distribution
A probability distribution that arises when estimating the mean of a normally distributed population in situations where the sample size is small and the population variance is unknown.
Sampling Distribution
The probability distribution of a given statistic based on a random sample.
Independent Sample Variances
A measure of the variability in each of two or more independent samples, used in hypothesis testing to assess the assumption of equal variances.
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