Suppose that the 8 large regions of Vietnam were randomized into one of the following groups: in some regions, the local health care centers continued to be run by the government (control group: 4 regions) or in others, the health centers were subcontracted out to a NGO (treatment group: 4 regions). You have access to information from a child health survey, which covers 1,000 children per region and gives you information on whether or not the children have been fully immunized. A collaborator proposes to run a standard Neyman analysis, on the sample of 4,000 treatment and 4,000 control children, ignoring the region altogether. Denote YT=0.80 the sample average immunization rate in the treatment group, YC=0.58 the sample average immunization rate in the control group, σ2T=1.22 the estimated variance in the treatment group and σ2C=2.32 the estimated variance in the control group.

Required:
a. What is the collaborator's estimate of the average treatment effect?
b. What is the collaborator's estimate of the associated variance?

the correct answer is semicircle

step-by-step explanation:

the answer is semicircle because the shorter arc joining two points on the circumference of a circle is known as the minor arc, the larger arc is called the major arc, and a semicircle is a half circle, formed by cutting a whole circle along a diameter line.

hope i .

median is the value separating the higher half of a data sample, a population or probablity distribution from the lower half.

step-by-step explanation:

say you have 3,8,7,3,1,9,8 order them from lowest to highest

if orderd it would be 1,3,3,7,8,8,9 now you take away from the lowest and the highest until you end up in the middle.

so you would remove the 1 and 9 leaving you with 5 digits remaining

when you've reached the middle that would be your answer so in this case the answer is 7

if there were two numbers left say 7 and 5 you'd and them together so 12 then divide by 2 witch would equal 6 so the answer would be 6

good luck on that project hoped i you at all

answer: the answer is simply nothing.

step-by-step explanation: because there is no ending to this question

gimme brainliest > : 3

include a picture of the drawing in order for me to

step-by-step explanation: