sort pm10winter ttest death if pmlowinter==1 | pm10winter==5, unequal by (pm10winter) sort pm10winter . ttest death if pm10winter==1 | pml0winter==5, unequal by (pml@winter) Two-sample t test with unequal variances Group Obs Mean Std. err. Std. dev. [95% conf. interval] 111 22. 20721 . 5019401 5. 288267 21. 21248 23. 20193 U H 110 21.35455 . 5105372 5. 35456 20.34268 22. 36641 Combined 221 21. 78281 . 3582941 5. 326424 21. 07668 22. 48893 diff 8526618 . 7159554 -.5583864 2.26371 diff = mean (1) - mean (5) t= 1. 1909 HO: diff = 0 Satterthwaite's degrees of freedom = 218.898 Ha: diff 0 Pr(T |t|) = 0.2350 Pr(T > t) = 0. 1175sort pmlespring ttest death if pm10spring==1 | pm10spring==5, unequal by (pmlespring) Two-sample t test with unequal variances Group Obs Mean Std. err. Std. dev. (95% conf. interval] 113 18 . 59292 . 3944617 4. 193186 17 . 81134 19.3745 un 112 18. 98214 . 4752535 5. 02961 18 . 0404 19.92389 Combined 225 18 . 78667 . 3081486 4. 622229 18 . 17943 19 .39391 diff -. 3892225 . 6176293 -1. 606596 . 8281506 diff = mean(1) - mean (5) t = -0.6302 He: diff = 0 Satterthwaite's degrees of freedom = 215.334 Ha: diff 8 Pr(T [t|) = 0.5292 Pr(T > t) = 0.7354 sort pn10summer ttest death if pm10summer==1 | pmlesummer==5, unequal by (pmlosummer) Two-sample t test with unequal variances Group Obs Mean Std. err. Std. dev. [95% conf. interval] 115 17.69565 4. 193089 16. 92107 18. 47024 114 19.92982 5318193 5. 678276 18. 87619 20.98345 Combined 229 18. 80786 . 3371183 5. 101404 18 . 14361 19. 47211 diff -2. 234172 . 6680899 -3.535498 -.9328466 diff = mean(1) - mean(5) t = -3.3846 Ho: diff = 0 Satterthwaite's degrees of freedom = 207.953 Ha: diff 0 Pr(T [t[) = 0.0809 Pr(T > t) = 0.9996Christina Cao . sort pmidautumn . ttest death if pml0autumn==1 | pm10autumn==5, unequal by (pml0autumn) Two-sample t test with unequal variances Group Obs Mean Std. err. Std. dev. [95% conf. intervall 112 19. 82143 . 5057924 5. 352804 18. 81917 20.82369 111 20.62162 . 5085758 5.358178 19.61374 21. 6295 Combined 223 20.21973 . 358827 5. 358429 19.51259 20.92687 diff -. 8081931 . 7172693 -2. 213757 . 6133708 diff = mean (1) - mean(5) t= -1. 1156 HO: diff = 0 Satterthwaite's degrees of freedom = 220.978 Ha: diff 0 Pr(T [t[) = 0.2658 Pr(T > t) = 0. 8671vii. Summarize your findings in a few sentences about whether mortality is associated with pollution (PM10) when controlling for seasonality and whether season modifies this association. Be quantitative citing mortality differences with their CIs