You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 90% confident that you estimate is within 4% of the true population proportion. How large of a sample size is required

Question

05-05-2022
Mathematics

Answered

Welcome to Westonci.ca, the Q&A platform where your questions are met with detailed answers from experienced experts. Explore in-depth answers to your questions from a knowledgeable community of experts across different fields. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 90% confident that you estimate is within 4% of the true population proportion. How large of a sample size is required

Sagot :

Thanks for using our service. We're always here to provide accurate and up-to-date answers to all your queries. Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. Stay curious and keep coming back to Westonci.ca for answers to all your burning questions.

Viruses: a) Have a protein capsid surrounding a piece of genetic material. b) are acellular parasites. c) may be surrounded by a phospholipid envelope. d) only

If a psychologist is interested in studying the risk factors that lead to delinquency in adolescence, on what goal of psychology is the researcher focused?A. Pr

Read this passage from Chapter 5 of "The Prince":"There are, for example, the Spartans and the Romans. The Spartans held Athens and Thebes, establishing there a

find the equation of the line joining the centre of the two circle x^2 +y^2 -2x+4y-1=0 and x^2 +y^2 +2x-4y+1=0

An impartial person or panel who makes a decision to resolve the dispute is know as a(n):__________ a. eliminatorb. arbitratorc. collaboratord. resolator

During a job interview, Pam Thompson is offered a salary of $32,000. The company gives annual raises of 3 percent. What would be Pam’s salary during her fifth y

After reading the section "Demonstrate Safe Work Practices and Safety Precautions," think about the potential safety hazards you may encounter while working in

Mark is a college student who has been lifting weights at the student recreation center. Mark's weight has been stable at 154 lb 70 kg). An analysis of the tota

Geometry B (v19 GS) Figures Test Part Two---Question 1 (10 points)Pyramid A is a square pyramid with a base side length of 18 inches and a height of 9 inches. P

True/False: Weber argues that the great conquering Iron Age empires of Assyria, Babylon, and Persia helped to spread literate urban culture more than it had spr

dayanaguzman02134 dayanaguzman02134 · Answer 1 · 2022-05-05T22:51:30-04:00

Answer:

n = 400

Step-by-step explanation:

The formula for the error in our estimate is given by:Standard Error : √ ( p(1-p)/ n)Error = SE = Zα/2 √ ( p(1-p)/ n) where Zα/2= critical value for 95% confidence level = 1.96and we know our error is 3.5 %But we do not the sample proportion p. Then what we can do is give an estimate of p in the absence of any other information.In this case we will use p= 0.5 which is the value that maximizes the expression for the standard error :if p = 0.8 then SE= 0.040 p = 0.3 then SE =0.036 p = 0.1 then SE = 0.030 p = 0.5 then SE = 0.050Substituting3.5/100 = 1.96 x √ (( 0.5 x 0.5 ) /n )3.5/ (100 x 1.96 x 0.5 ) = 1/ √n0.0357 = 1 /√n n = 20²

Sagot :

Other Questions