Acellus, I’m learning the Pythagorean therom and it’s really hard I can’t figure out how to calculate the square root problems or the radical symbol problems pls Help I’m running out of time to finish it in time to pass this grade I’m really stuck!

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.