Examlex
____ tolerances are used to check for runout of diameters related to a center axis, another diameter, or perpendicular surface.
Pooled Variance
A method to estimate the variance of two or more populations that assumes the populations have the same variance but different means.
Test Statistic
A value calculated from sample data during a hypothesis test that is used to determine the probability of observing the sampled data under the null hypothesis.
Population Variances
A measure of the dispersion or spread of a set of data points in a population; it quantifies how much the data points deviate from the mean of the population.
Confidence Interval
A range of values, derived from sample statistics, that is believed to contain the true population parameter with a certain level of confidence.
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