Ten Pairs of Points Yielded a Correlation Coefficient $r$ Of $0.790$ If

question 60

Multiple Choice

Ten pairs of points yielded a correlation coefficient $r$ of $0.790$ . If $\alpha = 0.05$ , which of the following statements is correct if $H _ { 0 } : \rho = 0$ ? (Do not calculate a $t$ -value.)

• A) Because 0.790 is greater than 0.602, the null hypothesis is not rejected.
• B) There is no correlation between the variables.
• C) Because 0.790 is greater than 0.632, the null hypothesis is rejected.
• D) Because 0.790 is greater than 0.632, the null hypothesis is not rejected.

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Definitions:

Phenotypic Plasticity

The capacity of a living entity to alter its physical characteristics as a reaction to varying environmental conditions.

Genetic Engineering

A field of biotechnology that involves directly manipulating the genes of organisms to modify or improve specific characteristics or produce desired products.

Dominant Genes

Genes that express their trait even when only one copy is present, overpowering recessive genes in determining certain characteristics.

Recessive Genes

Genes that produce their characteristic phenotype only when their allele is identical and not masked by a dominant allele in a heterozygous pairing.