B) Mr. Thomas invested an amount of $ 13,900 divided in two different schemes A and B at the simple interest rate of 14% p. a. and 11% p. a. respectively. If the total amount of simple
interest earned in 2 years be $ 3508, what was the amount invested in Scheme B? (4 marks)

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