Answer:
B. A two-sample t-interval for a difference between population means
Step-by-step explanation:
in the given situation we are comparing the groups that are independent also we test the difference of the population mean so here consider inference procedure for analyzing the results is that there should be two sample t -interval by taking a difference between the population means
hence, the correct option is B.
Answer:
84 Sq in
Step-by-step explanation:
area of the composite figure = Area of square + Area of triangle
Answer:
y= 40° , z = 90°
Step-by-step explanation:
Angle z is a right angle and is therefore 90°
Angles in a triangle add up to 180°
So we can work out y by making an equation:
Therefore y =40°
Answer:
2,637.18
Step-by-step explanation:
The formula for finding the volume of a cylinder is....
V = π
π = 3.14
Radius = 7
Height = 13
Now that we have what we need, we can substitute the numbers into the equations to get our volume
V = π
V = 3.14 * * 13
V = 3.14 * 49 * 13
V = 202.86 * 13
V = 2,637.18
The volume of the cylinder is 2,637.18
Hope this helped!
have a supercalifragilisitcexpialidocious day!