An employee in Sri Lanka is paid a salary of 42280 rupees which is of allowance of 2280 rupees, hence he must pay 15% to EPF employment prudent fund and 10% to ETF employment trust fund. Find out: a) The amount to pay to EPF
b) The amount to pay to ETF
c) The remaining salary after paying EPF and ETF.

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