When the Sample Sizes Are Equal,the Pooled Variance of the Two

question 108

Short Answer

When the sample sizes are equal,the pooled variance of the two samples is the ____________________ of the two sample variances.

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Definitions:

Experimenter Bias

The potential influence that a researcher's expectations or preferences may have on the outcome of an experiment, often unconsciously affecting the results.

Selection Bias

A distortion in a statistical analysis resulting from the method of collecting samples that is not random and therefore not representative of the population being studied.

Participant Bias

The influence that subjects in an experiment might have on the outcome due to their awareness of being observed or expectations about the experiment.

Random Sample

A sample that gives every member of the population an equal chance of being selected.