Suppose That Ten New Smart Phone Models Were Evaluated by Two

Multiple Choice

Suppose that ten new smart phone models were evaluated by two consumer electronics magazines (Popular Electronics and Electronics Now) from 1 (best) to 10 (worst) as shown below. Why is the Spearman's rho more appropriate than the correlation coefficient for these data?

A) The relationship is nonlinear.
B) The data are ordinal.
C) The data are not paired.
D) There is one extreme outlier.
E) Both outliers and bends in the data make the correlation coefficient difficult to interpret.