Photogtaph hand, you and your friend take off to explore more of the naunted house. All of a sudden, the Frankenstein in the photograph starts talking to you! What? A picture? He tells you that the house is not what it seems. An old witch owns the house and if you and your friend don't escape before she gets , you trapped inside forever! You must because she is back now ! She is only 328.5 miles away!

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.