Question

A magazine tested LCD televisions. The table below shows the overall quality score and cost in hundreds of dollars. Use the rank correlation coefficient to test for a correlation between the two variables. Use a significance level of

alpha equals α=0.01.

Based on these​ results, can you expect to get higher quality by purchasing a more expensive LCD​ television?

Quality nbspQuality	7171	6969	6666	6565	6161	5959	5555	5353	5353	5151	4949
CostCost	2424	2727	3434	2222	2020	1313	2424	2222	1414	1313	2020

Determine the correlation coefficient

r_s = ?

Answer 1