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Test the Significance of the Correlation Coefficient r\mathrm { r }

Question 57

Multiple Choice

Test the significance of the correlation coefficient r\mathrm { r } at =.05\ddagger = .05 for the data below
X values 53035Y values 31341\begin{array}{cccccc}\mathrm{X} \text { values } & -5 & -3 & 0 & 3 & 5 \\\mathrm{Y} \text { values } & 3 & 1 & -3 & -4 & -1\end{array}


A) Reject =0= 0 because 2.58>2.572.58 > 2.57
B) Do not reject =0- = 0 because 1.91<2.57- 1.91 < 2.57
C) Reject =0= 0 because 1.91>2.78- 1.91 > 2.78
D) Do not reject =0= 0 because 1.91>3.18- 1.91 > - 3.18

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