A Researcher Wishing to Correlate Two Variables Collects Data from 30

question 26

Multiple Choice

A researcher wishing to correlate two variables collects data from 30 people. For $\alpha$ = .05 (two-tailed) , the critical values would be ______.

• A) ± .361
• B) ± .355
• C) ± .349
• D) ± .306

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Definitions:

Statistic

A numerical value calculated from a sample of data, used to estimate characteristics of the population from which it is drawn.

Critical Value

A threshold value in statistical testing which the test statistic must exceed to reject the null hypothesis.

Population Parameter

A measure that signifies a trait of a whole population, like its average or standard deviation.

Sample Size

The total count of individual samples or observations used in a statistical study, directly impacting the study's conclusions' reliability.