2.) a researcher wants to construct a 99% confidence interval for the proportion of elementary school students in Seward County who receive free or reduced school lunches

b.) A state-wide survey indicates that the proportion is 0.65. Using this estimate.
what sample size is needed so that the confidence interval will have a margin of
error of 0.07?

i think it would be 42cm

answer: it's d

step-by-step explanation:

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