Even though both investors earned a 7% rate of retum, they still have to pay their management fees. You can find out an investor's effective rate of retum by subtracting the fee percentage from the rate of return percentage. a) What is Alizeh's effective rate of retur? b) What is Christina's effective rate of return?​

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