At   0

question 13

Essay

At   0.05, test to determine if the means of the three populations (from which the following samples are selected) are equal. Show the complete ANOVA table.

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Definitions:

Null Hypothesis

A statement in statistical analysis that proposes there is no significant effect or difference between certain variables or groups.

Statistical Test

A method of making decisions or inferences about population parameters based on sample data, often involving a comparison between an observed test statistic and a critical value.

Power

The probability that a statistical test will correctly reject a false null hypothesis; it measures a test's sensitivity to detect an effect if there is one.

Null Hypothesis

A hypothesis that proposes there is no significant difference or effect, and any observed difference is due to sampling or experimental error.