A rectangular sandbox cover will be built to protect an area of 72 square meters. Which are possible dimensions of the cover? Check all that apply.

2 m by 36 m
8 m by 9 m
8.5 m by 8.5 m
4 m by 18 m
6 m by 12 m
7.5 m by 9.5 m

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.