5.Suppose you have obtained from SPSS the correlation matrix in Appendix 1. According to the information in this matrix, which two variables exhibit the strongest linear relationship?

Appendix 1. SPSS Output for Question 5. X1 X2 X3 X1 Pearson Correlation .303** . 183* Sig. (2-tailed) 000 .000 N 500 500 500 X2 Pearson Correlation .303** -.441** Sig. (2-tailed) 000 032 N 500 500 500 X3 Pearson Correlation . 183* -.441** Sig. (2-tailed) .000 032 N 500 500 500 * * Correlation is significant at the .01 level (2-tailed). * Correlation is significant at the .05 level (2-tailed).Appendix 2. SPSS Output for Question 6. TREAT*SICKPOST Crosstabulation SICKPOST 0.00 Not Sick 1.00 Sick Total TREAT 0.00 Control Count 70 30 100 % within TREAT 70.0% 30.0% 100.0% 1.00 Treated Count 55 45 100 % within TREAT 55.0% 45.0% 100.0% Total Count 125 75 200 % within TREAT 62.5% 37.5% 100.0% Chi-Square Tests Asymp. Sig. Exact Sig. Exact Sig. Value df (2-sided) (2-sided) (2-sided) Pearson Chi-Square 12.500a 000 Continuity Correction 11.281 001 Likelihood Ratio 12.972 000 Fisher's Exact Test 001 000 Linear-by-Linear Association 12.438 000 N of Valid Cases 200 a. 0 cells (.0%) have expected counts less than 5. The minimum expected count is 10.00. b. Computed only for a 2x2 table