Suppose U=(1,2,3) is the universal set. Let A=(1,2,3,4),B=(3,4,5,6,7),C=(2,3,8, 9), E=(2,4,6...).(Here is the set of even integers.) Find: (I) A^c (ii)A/B (iii) A-C. ​

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.