If We Fail to Reject the Null Hypothesis in a Test

question 31

Multiple Choice

If we fail to reject the null hypothesis in a test of significance for a Pearson's r, we conclude that________.

• A) there is a negative association between the variables.
• B) no inference can be made about the relationship of the two variables in the population.
• C) the relationship exists but its direction and strength are unknown.
• D) the variables are related in the population.

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Definitions:

Heritability

A measure of how much of the variation in a trait within a population is due to genetic differences.

Genetic Changes

Alterations in the DNA sequence that can lead to variations in traits or diseases.

Population

The total number of individuals or organisms of a particular species living in a specific area or region at a given time.

Gene

A unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.