(a) As soon as a bottle of soda is opened, it begins to lose its carbonation. Fourteen 300ml bottles of Coca-cola were obtained, and each was assigned a randomly selected time period (in hours). Each bottle was opened and allowed to stand at room temperature. The carbonation (y) in each bottle was measured (in volumes) after the prescribed time period (x). The summary statistics are given below. [x=8.6, _y=37.4, _xy=19.61, _x =7.26 and Cy =110.24 (i) Find the Karl Pearson's coefficient to correlation and interpret it. [ 4 Marks] (ii) The coefficient of determination and comment on its value. [2 Marks]