Given That the Rank Correlation Coefficien$\mathrm { r } _ { \mathrm { S } },$

Question

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The Answer is

\mathrm { r } _ { \mathrm { S } } = - 0.636

. Critical values:

\mathrm { r } _ { \mathrm { S } } = \pm 0.654

.
Fail to reject the null hypothesis

\varrho _ { \mathrm { S } } = 0

. There does not appear to be a correlation between the two variables.

Given That the Rank Correlation Coefficien $\mathrm { r } _ { \mathrm { S } },$