high dimensional analysis

EXERCISE 3.5 Compute the correlation matrix of the variables in Example 3.2. Comment on the sign of the correlations and test the hypothesis PX;X; = 0. - 230 125 200 109 181 99 55 107 165 97 105 98 150 115 85 71 | 97 120 0 82 192 100 150 103 181 80 85 111 189 90 120 93 172 95 110 86 ( 170 125 130 78