Dane's friend Sookie also makes a stack of 10 pizzas. Her stack is also 16 inches in diameter and 12 inches tall, but the pizzas form a right cylinder that doesn't lean. How does the volume of her tower compare with the volume of Dane's tower?

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.