dakotakeating4513
19.07.2021 •
Mathematics
The sample size needed to estimate the difference between two population proportions to within a margin of error E with a significance level of ? can be found as follows. In the expression
E=z?p1(1?p1)n1+p2(1?p2)n2
we replace both n1 and n2 by n (assuming that both samples have the same size) and replace each of p1, and p2, by 0.5 (because their values are not known). Then we solve for n, and get
n=(z?)22E2.
Finally, increase the value of n to the next larger integer number.
Use the above formula and Table C to find the size of each sample needed to estimate the difference between the proportions of boys and girls under 10 years old who are afraid of spiders. Assume that we want a 99% confidence level and that the error is smaller than 0.07.
n=.
Solved
Show answers
More tips
- H Health and Medicine What to Take with You to the Maternity Hospital?...
- F Family and Home How to Choose the Perfect Air Conditioner for Your Life...
- H Health and Medicine Discover the Hidden Principles and Real Results of the Japanese Diet...
- H Health and Medicine Understanding Pregnancy Tests: What You Need to Know?...
- H Health and Medicine What Makes a Man a Man?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
Answers on questions: Mathematics
- M Mathematics Which statements about the system are true? Check all that apply. 2y= x+10 3y=3x+15 O The system has one solution. O The system graphs parallel lines. O Both lines have...
- M Mathematics How many different 5-digit whole numbers can be made using the digits: 2,3,4,5, and 6 when each digit can be used once only?...
- M Mathematics The quotient of r with a devisor of 3...
- M Mathematics Solve: 5 - 2x 15 * •X -5 •X -5 •X 5 •X 5 •It cannot be simplified....
- M Mathematics How to divide monomials...
- M Mathematics Will give brainiest plus 30 points if you answer correctly What is the value of x? Enter your answer in the box. x =...
- M Mathematics Witch one is it? I m confused...
- M Mathematics WILL MARK AS BRAINLIEST PLEASE HELP FAST What is the value of 4(3d-e)-2f...
- M Mathematics Need a little help here....
- M Mathematics The growth of an investment at a local bank can be modeled by the equation A(t) = 800 (1.03) , where t represents the number of years. How much would you have after 5...
Ответ:
n= (z)22E2
n=10× 99%÷ 0.07
Ответ:
did you end up finding the answer
Step-by-step explanation: