You want to buy a house in 4 years and expect to need $30,000 for a down payment. if you have $15,000 to invest, how much interest do you have to earn (compounded annually) to reach your goal? a. 21.53% b. 16.67% c. 13.62% d. 18.92%

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0