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Test the usefulness of variable x1 in the model at α = .05.Calculate the t statistic and state your conclusions.
Traits
Enduring characteristics or tendencies that define an individual's behavior, thought patterns, and emotional responses.
Allele
A particular variant, or form, of a gene; most genes have two or more alleles.
Gene
A basic unit of heredity made up of DNA that contains the instructions needed to develop and direct the activities of cells in an organism.
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