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__________ Is a Way of Organizing a Study in Which

question 56

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__________ is a way of organizing a study in which the effect of two or more variables is examined at once by making groupings of every combination of the variables.


Definitions:

Null Hypothesis

A statement in hypothesis testing that there is no effect or no difference, and it is the hypothesis that researchers aim to test against.

Precision Instrument

A tool or device designed to measure or record quantities with high accuracy and minimal error.

Population Variance

The average of the squared differences from the Mean, representing the variance within a whole population.

Confidence Interval

A range of values, derived from sample statistics, that is believed to contain the true parameter of the population with a certain level of confidence.

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