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SECTION 1.5 A REVIEW OF STATISTICAL INFERENCE 33

Le non non ono —OE€OE€0€O€—

Hypothesis-testing procedures should be viewed as tools that aid
an experimenter in interpreting the outcome of research. Such procedures
should not be permitted to replace the judicial use of logic by an alert
analytic experimenter. In particular, the technigue of analysis of variance
desceribed,in this book should be considered an aid in summarizing data.
It should be used to help an experimenter understand what went on in an
experiment; it is not an end in itself.