Estimation of difference among population proportions , Mathematics

Estimation of difference among population proportions

Assume the two proportions be described by P1 and P2, respectively,Then the difference absolute between the two proportions is described by (P1 - P2)

The standard error is described by:-

S(P1 - P2) = √{(pq/n1) + (pq/n2)}  =   where p = (p1n1 + p2n2)/(n1 + n1)  and q = 1 - p

Then described the confidence level, the confidence interval among the two population proportions is described by

(P1 - P2) ± Confidence level S(P1 - P2)

= (P1 - P2) ± Z  √{(pq/n1) + (pq/n2)} 

Whereas P = (p1n1 + p2n2)/(n1 + n1)  always remember to convert P1 and P2 to P.

 

Posted Date: 2/19/2013 12:35:00 AM | Location : United States







Related Discussions:- Estimation of difference among population proportions , Assignment Help, Ask Question on Estimation of difference among population proportions , Get Answer, Expert's Help, Estimation of difference among population proportions Discussions

Write discussion on Estimation of difference among population proportions
Your posts are moderated
Related Questions
Make a file called "testtan.dat" which has 2 lines, with 3 real numbers on every line (some negative, some positive, in the range from-1 to 3).  The file can be formed from the edi

the ratio of dogs to cats is 2 to 9.if there are 10 dogs how many cats are there?

Rate - when we know how many objects are in a set, and need to find out the total number in several copies of that set. (e.g., if a child uses 4 copybooks in a year, how many co


I have an algebra assignment I need help with, you have helped me before.. I need the work shown.

In the adjoining figure a dart is thrown at the dart board and lands in the interior of the circle. What is the probability that the dart will land in the shaded region. A

Parametric objective-function problems


5645.356 turn into fraction

Series - Special Series In this part we are going to take a concise look at three special series.  In fact, special may not be the correct term.  All three have been named th