If the Pearson Correlation Is Calculated for a Sample of N

question 36

Multiple Choice

If the Pearson correlation is calculated for a sample of n = 20 individuals,what value for df should be used to determine whether or not the correlation is significant?​

• A)​18
• B)​19
• C)​20
• D)​21

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Definitions:

Negative Number

A number less than zero, typically represented with a minus sign in front, indicating a value opposite to its positive counterpart.

Null Hypothesis

A hypothesis that there is no significant difference or effect, typically used as a starting assumption in hypothesis testing.

Two-Tailed

Pertains to a test of significance where the critical area of a distribution is two-sided and tests whether a sample is either greater than or less than a certain range of values.

Degrees Of Freedom

The number of values in a statistical calculation that are free to vary without violating the constraints of the calculation.