Plane y What is the area of the trapezoid? 20 18 16 O 30 square units 60 square units 90 square units O 120 square units -14 112 B 10 D 8 6 A 4 2 x х 2 4 6 8 10 12 14 16 18 20​

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.