What are the coordinates of the x-intercept(s) of the graph of y = (x - 6)(x + 5)? a) (0, -30) b) (-5, 0) and (6, 0) c) (0, -5) and (0, 6) d) (-6, 0) and (-5, 0)

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.