The triangle jkl shown on the coordinate grid below is reflected once to map onto triangle j'k'l': triangle jkl is drawn on a 4 quadrant coordinate grid with vertices j is at 8, 1. k is at 5, 7. l is at 3, 4. if vertex l' is at (−3, 4), what are the coordinates of vertex j'?

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.