What is the approximate sample size required to estimate the percentage of Americans who have earned a college degree to within 2%, with 95% confidence? Recall: the worst case scenario would assume that p = 0.5 2401

What is the approximate sample size required to estimate the percentage of Americans who have earned a college degree to within 2%, with 95% confidence? Recall: the worst case scenario would assume that p = 0.5 2401

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: 2. Given: n=80, a = 15, level of confidence is 92%. What is the margin of error of the given data?

Q: 2) Assume the p=.03 (3%). How large a sample is needed to estimate the proportion of breast cancer…

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

Q: A lobbyist is trying to estimate the true proportion of US adults that support an upcoming bill.…

A: Givenapproximation of p = 0.5Margin of error(E)=0.01confidence level = 95%

Q: An article in the Washington Post on March 16, 1993 stated that nearly 45 percent of all Americans…

A: The question is about hypo. testing Given : Randomly selected no. of students ( n ) = 82 No. of…

Q: Suppose that you wish to find a population proportion p with accuracy ±2% with 99% confidence. What…

Q: n Find the size of the sample needed to estimate the difference between the proportions of Democrats…

Q: 1) Assume the p=.03 (3%). How large a sample is needed to estimate the proportion of breast cancer…

Q: A recent survey in the United States reported the prevalence of a sexually transmitted disease…

A: Given information- Sample proportion, p = 1.7% We have given 95% Confidence interval is = (1.4%,…

Q: find the margin of error for a sample mean, given n=16, s=4, Xbar=17. for a 95% confidence interval.

A: The margin of error for sample mean is given by,

Q: A study quoted in The Windsor Star suggested that mathematics should be taught in the afternoon…

A: We have given that, Confidence interval = 95 % and margin of error (B) = 0.06 Then, We will find…

Q: You work for a marketing firm that has a large client in the automobile industry. You have been…

A: (a) Critical value: Using the z-table, the critical value at 98% confidence level is z0.022=2.326…

Q: A tester sampled randomly 150 bolts from a consignment. She noticed a standard deviation 6.2. Given…

Q: For a sampling distribution of n = 500 and population proportion of 0.48 of those who prefer cookies…

Q: An article in the October 11, 2006, issue of the Washington Post claimed that 15% of high school…

Q: The following data are the monthly salaries and the grade point averages for students who obtained a…

A: For the given data using Regression t test the hypotheses at 5% l.o.s

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Solution

Q: What sample size is needed to give a margin of error within +3 in estimating a population mean with…

Q: A researcher wishes to estimate the percentage of adults who support abolishing the penny. What size…

A: From the provided information, Margin of error (E) = 0.04 Confidence level = 90%

Q: Suppose we want to estimate the proportion of teenagers (aged 13-18) who are lactose intolerant. If…

Q: Suppose you want to construct a confidence interval with a margin of error of 0.03 (3%). Find the…

A: The formula for calculating sample size is, n = z2*p^(1-p^)MOE2 Where, z is the z score (default…

Q: You want to obtain a sample to estimate the percentage of college students in the U.S. that get a…

A: It is given that margin of error (E) is 0.03 and the confidence level is 0.95.

Q: Suppose that we wanted to estimate the true average number of eggs a queen bee lays with 99%…

Q: A random sample of medical files is used to estimate the proportion p of all people who have blood…

A: Margin of error(E), E=z×p×qn From the above E, find n, n=zE2×p×q Here, E=0.04 There is no…

Q: In a poll, 6969% of the people polled answered yes to the question "Are you in favor of the death…

A: Obtain the value of the minimum number of surveyed people. The value of the minimum number of…

Q: How large a sample is necessary to estimate the true proportion of unmarried Canadians aged 25-29…

A: Given data: Margin of error = 5% = 0.05 Confidence level = 0.90 To find: Sample size (n) = ?

Q: design. A web developer has decided to use a new technique accounts into 10 categories and kept…

A: Given:

Q: Suppose that you are attempting to estimate the weight of 600 parts. In order to use the infinite…

Q: In a study on caffeine and stress, college students (n = 10) indicated how many cups of coffee they…

A: The research hypothesis is that there is an association between stress and cups of coffee consumed…

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you…

A: Given that, Critical value: Using the z-table, the critical value at 96% confidence level for two…

Q: How large is the sample if the confidence level is 97%, Ɛ = 2.5% and ρ = .35?

Q: A random sample of medical files is used to estimate the proportion p of all pe who have blood type…

Q: A survey of 240 individuals found that 1/3 of them use their cell phones primarily for e-mail.…

A: The random variable usage of cell phone follows binomial distribution. The sample size is 240. The…

Q: Assume that a sample is being used to estimate a population mean μμ. If n = 29, x¯ = 46, and s =…

A: From the provided information, Sample size (n) = 29 Sample mean (x̅) = 46 Sample standard deviation…

Q: Your state is considering raising the legal age for consumption of alcoholic beverages to 21 years…

A: p = 0.5 Margin of error = 0.01

Q: Suppose a certain Statistics instructor wants to estimate the proportion of students who enjoy…

A: since estimate for proportion is not known therefor we take p⏞=0.5 margin of error=E= 0.03 level of…

Q: Given a 95% C.I. = (34.14 mm, 36.02 mm) for a sample of Wooly Bear caterpillar lengths (preceding…

A: The 95% confidence interval is (34.14 mm, 36.03 mm).

Q: If you want to be 99% confident of estimating the population proportion to within a sampling error…

A: Answer:- Given, Confidence level, C = 99% = 0.99Error, E = 0.06Population proportion, p = 0.43 Using…

Q: A national survey of 2500adult citizens of a nation found that 25% dreaded Valentine's Day. The…

A: Given that sample size is n=2500. Let p denote the true population proportion of adults those…

Q: You are conducting a study to estimate the mean height of students in a university. The university…

A: To calculate the sample size required to estimate the mean height of students in the university with…

Q: What sample size is needed to give a margin of error within +3% in estimating a population…

Q: Your state is considering raising the legal age for consumption of alcohol beverages. How large a…

A: From the provided information, Margin of error (E) = 0.01 Confidence level = 99%

Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Determine the necessary sample size.
What is the approximate sample size required to estimate the percentage of
Americans who have earned a college degree to within 2%, with 95% confidence?
Recall: the worst case scenario would assume that p = 0.5
%3D
O 2401
O 3382
O4145
O 1692
7156

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

When the population standard deviation is unknown and the sample size is greater than 30, what table value should be used in computing a confidence interval for a mean? a. z b. t c. chi square d. standard deviation
How many Biology students’ records need to be sampled to estimate the percentage who earn "A"s to within 4.5% with 98% confidence?
What sample size is needed to give a margin of error within +1 in estimating a population mean with 99% confidence, assuming a previous sample had s = 2.9. Round your answer up to the nearest integer. sample size=
If your target population is 123, how many samples do you need for a sampling error of .05 and a level of confidence of 95 percent (.05 level)? Show your solution.
The following sample data are from a normal population: 10,9,12,14,13,11,6,5 c. With 95% confidence, what is the margin of error for the estimation of the population mean (to 1 decimal)? d. What is the 95% confidence interval for the population mean (to 1 decimal)? d.
may i know the answer??????????
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.34. You would like to be 90% confident that your esimate is within 1.5% of the true population proportion. How large of a sample size is required
A researcher wants to estimate the mean income of a population with a 95% confidence level and a margin of error of $100. How large should the sample size be for the estimation?
When asked, "Do kids regularly carry weapons in your school?" 14,250 students said yes, and 115,331 students said no. With a 95% level of confidence, find the margin of error (MOE) associated with the sample proportions. (Give the answer to one decimal place, if needed.)MOE = %
For the specified margin of error and confidence level, obtain a sample size that will ensure a margin of error of at most the one specified. margin of error=0.05;confidence level=95%
Suppose the null hypothesis is not rejected. State the conclusion based on the results of the test. Six years ago, 11.1% of registered births were to teenage mothers. A sociologist believes that the percentage has decreased since then.
What sample size is needed to give a margin of error within +2.5% in estimating a population proportion with 99% confidence? We estimate that the population proportion is about 0.3. Round your answer up to the nearest integer. Sample size = ! %3D