A quartic function, h(x), is such that its leading coefficient is 2. Which two of the following would
describe the correct end behaviors of the graph of the function?
I. As x →-0, h(x) +-0.
II. As x —-0, h(x) →00.
III. As x →00, h(x) +-0.
IV. As x 700, h(x) →
.

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.