(5x + 7)(5x – 7)
Foil method

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.

I’m really confused and need to learn this

On ryan's last social studies test there were two types of questions true/false worth 3 points each and multiple choice questions worth 4 points each