e Clarissa Ramos submitted Apr 25 at 12:49am Incorrect Question 1 0 / 5 pts Provide an appropriate response. A researcher wishes to estimate the number of households with two cars. How large a sample is needed in order to be 95% confident that the sample proportion will not differ from the true proportion by more than 4%? A previous study indicates that the proportion of households with two cars is 22%. 413 291 529 4 5/5 pts Question 2

e Clarissa Ramos submitted Apr 25 at 12:49am Incorrect Question 1 0 / 5 pts Provide an appropriate response. A researcher wishes to estimate the number of households with two cars. How large a sample is needed in order to be 95% confident that the sample proportion will not differ from the true proportion by more than 4%? A previous study indicates that the proportion of households with two cars is 22%. 413 291 529 4 5/5 pts Question 2

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

It is believed that 12% of Americans use a traditional antenna to watch network television. How large a sample is needed to estimate the true proportion that use antennas with 95% confidence and within 2 percentage points? Show all work leading up to your answer below.
A report states that 46% of home owners had a vegetable garden, how large A sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 3% with 95% confidence.
When solving a problem related to one sample and the confidence interval of variance. Suppose the sample size is n. What is the degree of freedom we will use?
At one large college, 660 out of the 1500 students surveyed said they plan to take another science class.Find the 95% confidence interval for the proportion of students that said they plan to take another science class.
Suppose we know that a confidence interval for a population proportion is (0.105,0.355), with a sample proportion of p̂=0.23. What is the margin of error?
if n = 42, p = 0.6 then construct the 98% confidence interval for the population proportion.
Vlad the Impaler promotes many of his soldiers into generals (don't ask what happened to the past generals). Haley thinks the proportion is about 79%, but wants to estimate the proportion better by sampling soldiers until her margin of error for a 93% Confidence Interval is less than 0.005. How many soldiers should Haley sample?
Suppose you are given the following information from a sample of data: variance is 484 the number of observations in the sample is 65 for a confidence level of 96%, calculate the margin of error
-One Sample Dichotomous Outcome- Suppose a similar study was conducted two years ago and found that the prevalence of smoking was 27% among freshman. Problem: If the investigator believed that this is a reasonable estimate of prevalence today, how many subjects would be needed?