Fiona can make 8 cards in 1/2 hour. she divides to find the number of cards she can make per hour, but she makes a mistake. three of these reasons explain why her answer must be wrong. which does not?

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.