Isurveyed 40 people from a poor area of town and 60 people from an affluent area of town about their feelings towards minorities. i counted the number of negative comments made. i was interested in comparing their attitudes. the average number of negative comments in the poor area was 16 and in the affluent area was11. the standard deviations were 6 and 3 respectively. let's determine a 95% confidence interval for the difference in mean negative comments. (in 2 decimal) a) 3.23paμμ< −< 7.69 b) 1.56paμμ< −< 8.11 c) 2.63paμμ< −< 7.36 d) 2.99paμμ< −< 7.01