To decorate a cake, you make a shade of green icing using 33 drops of yellow food coloring for every 44 drops of blue food coloring. if you use 1212 drops of yellow food coloring, how many drops of blue food coloring would you need?

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.