The vending machine has been loaded up with mrs. lane’s favorite candy, peanut butter cups. if there are 9 sections of peanut butter cups and each one holds 12, how many days can you keep mrs. lane happy if you give her one each day?

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.