A researcher wonders if art beauty ranking to its value (how much $$ it's worth). The researcher ranks 10 pieces of art in a local gallery (1 = lowest beauty and 10 = highest beauty) and records how much each piece is sold for. Is there a relationship between art ranking and sale price? Test at = .05. Piece Art Rank Cost ($) A 10 960 B 9 920 C 6 930 D 7 860 E 2 870 F 4 910 G 8 950 H 5 910 I 3 880 J 1 890 a. Which correlation technique is most appropriate and why? Hint: there are several different correlation techniques discussed, which is most appropriate