Recall the chapter example which described the fact that the mean iq in large, diverse populations is 100 and the standard deviation is 15. your sample of 300 members of your community gave you a mean iq score of 108. calculate the margin of error for the 99% confidence level for this sample. which of the following figures comes closest to your answer?
a. 10.95.
b. ±1.96.
c. 12.23.
d. 11.16.
e. none of the above

The margin of error for the 99% confidence level for this sample is ±2.23.

None of the given figures is close to the

E. None of the above

Step-by-step explanation:

margin of error (ME) around the mean can be calculated using the formula

ME= where

Using these numbers we get:

ME=  ≈ 2.23

no one knows lol

step-by-step explanation:

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584