Gabrielle wants to use felt
material to cover the floors
of a room and a hallway in
her dollhouse. She
measured the room and
hallway and sketched it
below. How many 8.5 in. x
11 in. pieces of felt does
Gabrielle need for the room
and hallway? Solve this
problem any way you
choose.
22 in.

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