Fewer Than 50,000 Blacks Served in the Union Army During

question 135

True/False

Fewer than 50,000 blacks served in the Union army during the war.

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Definitions:

Confidence Interval

An interval estimate used to quantify the uncertainty of an estimated population parameter.

Pooled Variance

An estimate of the variance that is calculated by combining the variances from two or more samples, assuming they have the same population variance.

Degrees of Freedom

The number of independent values or quantities that can be assigned to a statistical distribution.

T Procedure

A statistical method used for hypothesis testing and constructing confidence intervals, especially useful when the sample size is small.