If $8000 is deposited into an account earning compound interest at an annual interest rate of 4% for 10 years, and it is compounded quarterly (thus 4 times per year), how much money is in the account at the end of the 5 years? Round your answer 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.