You are using an independent samples t-test to compare two groups. The first group
has 10 people in it, a mean of 100 and a standard deviation of 5. The second group
has 18 people in it, a mean of 120, and a standard deviation of 3. What is the
standard error for the difference of the two means?
2.41
3
1.73
1.12

_ ___ ___ ___

<3 ___ ___ _

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi