Aspherical tank has a radius of 6 yards. it is filled with a liquid that costs $7.15 per cubic yard.

what is the total value of the liquid in the tank?

use 3.14 for π .

enter your answer in the box to the nearest cent.

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.