Marcus has $163 in his checking account. on monday, je wrote a check for $315. how much does marcus need to deposit into is account to prevent the account balance from dipping below the minimum of $25? ** solve the problem in an equation

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.