who live within 20 miles of the coast in high hurricane risk counties of eight southern states. In selecting the sample, care was taken to ensure that the sample would be representative of the population of coastal residents in these states. IA USE SALT (a) Use this information to estimate the proportion of coastal residents who would evacuate using a 98% confidence interval. (Round your answers to three decimal places.) (b) Write a few sentences interpreting the interval and the confidence level associated with the interval. We are % confident that the proportion of all coastal residents who --Select-- v evacuate within the confidence interval. If we were to take a large number of random samples of size 4,625, |% of the resulting confidence ite would contain the true proportion of all coastal residents who --Select-- v evacuate.

who live within 20 miles of the coast in high hurricane risk counties of eight southern states. In selecting the sample, care was taken to ensure that the sample would be representative of the population of coastal residents in these states. IA USE SALT (a) Use this information to estimate the proportion of coastal residents who would evacuate using a 98% confidence interval. (Round your answers to three decimal places.) (b) Write a few sentences interpreting the interval and the confidence level associated with the interval. We are % confident that the proportion of all coastal residents who --Select-- v evacuate within the confidence interval. If we were to take a large number of random samples of size 4,625, |% of the resulting confidence ite would contain the true proportion of all coastal residents who --Select-- v evacuate.

Name: If a hurricane was headed your way, would you evacuate? The headline
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: If a hurricane was headed your way, would you evacuate? The headline of a press release states, "Thirty-two Percent of People on High-Risk Coast Will Refuse Evacuation Order, Survey of Hurricane Preparedness Finds." This headline was based on a surv

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

Similar questions

B. Find the length of the confidence interval given the following data: 1. o = 0.3, n = 45, confidence level 98% 2. 0 = 0.5, n = 50, confidence level 95% Item 2 only 3. 0 = 1.5, n = 70, confidence level 99%
The number ofunhealthy days based on the AQI (Air Quality Index)for a random sample of metropolitan areas is shown.Construct a 90% confidence interval based on the data.60 12 5 42 24 36 94 6 15 43
If n = 530 and X = 424, construct a 99% confidence interval for the population proportion, p.Give your answers to three decimals < p <
Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n= 1078 and x 507 who said "yes." Use a 90% confidence level. Click the icon to view a table of z scores. ..... a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.) Clear All Check Ar View an Example Get More Help - Help Me Solve This MacBook DD F11 DII F10 F9 F8 F7 吕0 F6 F5 F4 F2 F3 F1 & #3 24 7 3 4 5 1 2 T. Y 00
Assume that a sample is used to estimate a population proportion p. To find the 95% confidence interval for a sample of size 250 with 140 successes, you need to use which one the following calculator
Use the sample data and confidence level given below to complete parts (a) through (d). In a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 2623 subjects randomly selected from an online group involved with ears. 1007 surveys were returned. Construct a 99% confidence interval for the proportion of returned surveys. E== Click the icon to view a table of z scores. a) Find the best point estimate of the population proportion p. t: 0 (Round to three decimal places as needed.)
An arborist is interested in determining the mean diameter (in centimeters) of mature white oak trees at a certain height above the base. She measures 7 of these trees and finds the following sample statistics : x̄= 49.09 and s= 13.80. Construct a 95% confidence interval for the mean diameter of a mature white oak tree.
A recent article published by the Wall Street Journal said the Cincinnati airport had the most expensive airfares among the largest airports in the US. While they had some statistics to support this statement, a statistician decided to investigate further. A sample of 46 flights originating in Cincinnati was selected, and the round-trip airfare for each flight was recorded. The sample data is summarized in the StatCrunch output below: With 98% confidence, we estimate the mean airfare for flights out of Cincinnati is between $ and $. (Round the limits of your interval to 4 decimal places.) The mean airfare nationwide was reported as $376 for a round-trip ticket. Does the interval found above support the claim that Cincinnati has airfares which are more expensive than other airports in the US? The interval does not support the claim because the entire interval is not above $376. We can't make this conclusion based on a confidence interval. The interval does not support this claim…
2.) A survey of 200 college students revealed that 160 of them eat dessert daily. Construct a 95% confidence interval for the population proportion of college students who eat dessert daily. Can we claim that 75% eart dessert daily?
Please help me solve: A. the population portion B. the Margin of Error C. the confidence interval
4 part question.
10) Construct a 95% confidence interval for the difference between the two population proportions P1-P2. Population one has a sample size of 520 and a sample proportion of 24%. Population two has a sample size of 430 and a sample proportion of 17% (calculator).