Two sporting goods stores are having discount sales on basketballs. • at one store, a basketball is on sale for 20% off the regular price of $24.95. • at the other store, the same kind of basketball is on sale for 25% off the regular price of $25.80. what is the difference between the sale prices of the two stores?

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