An NMS stock is currently quoted at $15.20 Bid - $15.40 Ask. A customer wishes to place a limit order to buy 100 shares of the stock at $15.211. The registered representative should:

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.