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Correlation analysis for anxiety test

Four research participants take a test of manual dexterity (high scores mean better dexterity) and an anxiety test (high scores mean more anxiety). The scores are as follows.

Person Dexterity Anxiety

1 1 10
2 1 8
3 2 4
4 4 _2

c) figure the correlation coefficient;

d) figure whether the correlation is statistically significant(use the .05 significance level, two-tailed);
t needed (df = 2 p .05) =
r =
t =

Decision: reject the null hypothesis or do not reject the null hypothesis

Key:
t needed = cut-off score that establishes the region of rejection (also known as the critical value) both groups
r = score that represents the correlation coefficient
t = score that determines the significance of the correlation coefficient score

Solution Summary

Step by step method for correlation analysis is discussed here.Scatter diagram and significance of correlation are explained in the solution.

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