What would be your corresponding x value to a - score of - 0.56 What percentage of your focused study times were at, or less than , that score? Population mean 19.6. Pop standard Dev= 10.5 assume n>30. Sample mean 20.3 sample Standard Dev= 11.34

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

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?

Use the irregular polygon below. show all work. a. find the perimeter. b. find the area. the angles of the irregular polygon is 2, 8, 8, and 4.