Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 218 with 57 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.

Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 218 with 57 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.

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: Suppose we wanted to estimate the average amount of sleep (in hours) a college student gets a night.…

A: Confidence interval : Confidence interval is a range of values it contains the true population…

Q: Use the given confidence interval to find the margin of error and the sample proportion. (0.704,…

A: The confidence interval for population proportion is given by (0.704, 0.732)

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step…

A: Introduction: The 100 (1 – α) % confidence interval for the population proportion, p is: Here, n is…

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step…

A: The question is about confidence interval.Given :No. of sample of tankers drawn ( n ) = 432No. of…

Q: Out of 240 sample students surveyed, 187 students are planning to take classes during the…

A: We have given that the sample size n=240 and favourable cases X=187. Sample proportion p^ = X/n.

Q: Suppose in a recent poll of 1250 randomly selected Californians who took vacations, 132 of them…

Q: Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval…

Q: The confidence interval for a population porportion is (0.34, 0.5). What the the sample proportion…

A: Given The confidence interval for a population proportion (0.34,0.5) estimate the sample…

Q: Suppose you calculate a 99% confidence interval to be: 13.05 to 20.75. Determine the margin of error

A: Given data: The given upper limit is b=20.75. The given lower limit is a=13.05. The expression for…

Q: A study at Harvard found that 44% of their students binge drink. You are at Princeton doing a…

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step…

A: Sample size : n = 523P = proportion of tankers that have spills440 tankers did not have spillsNo.…

Q: Assume that a sample is used to estimate a population proportion. Find the 95% confidence interval…

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

Q: A confidence interval was constructed to approximate a population proportion. The interval was from…

A: We have given that, Let p̂ represents the sample proportion and E represents the margin of error,…

Q: assume that a sample is used to estimate a population proportion p. find the margin of error that…

A: Givensample size(n)=325x=54.2p^=xn=54.2325=0.1668confidence level = 95%

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month.…

Q: Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval…

Q: Assume that a sample is used to estimate a population proportion p. Find the 80% confidence interval…

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 100…

A: According to the given information, we have Out of 100 adult residents sampled, 88 had kids. 99%…

Q: Construct the 90% confidence interval for the difference p1-p2 when x1=45, n1=85, x2=20, and n2=65.…

A: Given Information: x1=45n1=85x2=20n2=65c=90%=0.90

Q: Suppose you calculate a 95% confidence interval for a proportion to to be: 0.39 to 0.78. Determine…

A: Given, Lower bound = 0.39 Upper bound = 0.78 Here, we use to determine the margin of error.

Q: In a survey of 2268 adults, 720 say they believe in UFOs. Construct a 90% confidence interval for…

A: Suppose p is the true population proportion adults who believe in UFOs.

Q: In a survey of 3463 adults, 1498 say they have started paying bills online in the last year.…

A: Find z-critical value:…

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: Confidence interval (0.761,0.785)

Q: In a random sample of 144 observations, the sample proportion is 0.90. Construct a 95% confidence…

A: given data sample size (n) = 144P^ = 0.9095% ci p.

Q: In a survey of 3292 adults, 1470 say they have started paying bills online in the last year.…

A: Using Excel formula “=NORM.S.INV(1-(0.01/2))”, the critical value for 99% confidence level is…

Q: If n = 530 and X = 424, construct a 99% confidence interval for the population proportion, p. Give…

Q: Construct the 99.8% confidence interval for the difference P1 - P2 when x, = 23, n, = 53, x2 = 15,…

Q: Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval…

A: Find z-critical value:…

Q: Suppose we wanted to estimate the average amount of sleep (in hours) a college student gets a night.…

A: GivenTo estimate the average amount of sleep( in hours)

Q: If N=480 and p̂ (p-hat) =0.88, find the margin of error at a 95% confidence level.

A: From the provided information, Sample size (n) = 480 p̂ (p-hat) =0.88 Confidence level = 95%

Q: Assume that a sample is used to estimate a population proportion p. Find the 98% confidence interval…

A: Find z-critical value:…

Q: Determine the point estimate of the population mean and margin of error for the confidence interval.…

A: The objective is to estimate the population mean and margin of error. Given that the lower bound is…

Q: assume that a sample is used to estimate population proportion p. find the 95% confidence interval…

Q: A recent survey of 349 people ages 18 to 29 found that 86% of them own a smartphone. Find the 99%…

A: The 99% confidence interval of the population proportion is obtained below as follows: The formula…

Question

100%

Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 218 with 57 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

Expert Solution

Step 1

$g i v e n d a t a n = 218 x = 57 c o n s t r u c t 90 % c i f o r p .$

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Suppose we wish to construct a 95% confidence interval for the population proportion of fans in Notre Dame Stadium on a football Saturday who traveled in their own car. When we asked 200 randomly selected fans, 130 answered yes. Calculate the margin of error for this interval. Round your answer to 3 decimal places.
Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 210 with 88% successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.C.I. =
Assume that a sample is used to estimate a population proportion p. Find the 80% confidence interval for a sample of size 330 with 29% successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.
Find the critical value, for a 90% confidence when the sample size is 22
Tina catches a 14-pound bass. She does not know the population mean or standard deviation. So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds. Find the t and calculate a 95% (α = .05) confidence interval.
Suppose a 90 percent confidence interval to estimate a population proportion was calculated from a sample proportion of 18 percent and a margin of error of 4 percent. What is the width of the confidence interval?
Question
Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 153 with 28% successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.
In a survey of 1798 US adults, 1365 said they had paid a bill online within the past year. What is the LOWER endpoint of a 90% confidence interval for the population proportion? What is the UPPER endpoint of a 90% confidence interval for the population proportion?
You are interested in constructing a 99% confidence interval for the proportion of all caterpillars that eventually become butterflies. Of the 407 randomly selected caterpillars observed, 43 lived to become butterflies. Round answers to 4 decimal places where possible.
Researchers studied the mean egg length (in millimeters) for a bird population. After taking a random sample of eggs, they obtained a 95% confidence interval of (45,60). What is the value of the margin of error? Choose the correct answer below. A. 15 mm B. 52.5 mm O c. 7.5 mm O D. 1.96
Out of 500 people sampled, 200 had kids. Based on this, construct a 90% confidence interval for the true population proportion of people with kids.Give your answers as decimals, to four places