Lacey stopped at Littletown market to buy 10 cookies for her book club. Littletown Market sells 9 cookies for $8. On her way home, Lacey passed by another store, Collegetown Bakery. Collegetown Bakery sells 13 cookies for $30. Lacey figured out she got the better deal. How much did she save by buying her cookies at Littletown Market?

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