If, based on a sample size of 800, a political candidate finds that 459 people would vote for him in a two-person race, what is the 90% confidence interval for his expected proportion of the vote? Would he be confident of winning based on this poll?A 90% confidence interval for his expected proportion of the vote is(Use ascending order. Round to four decimal places as needed.)d

The provided information is as follows:The sample size is .The total number of people who would vote…

Answered: If, based on a sample size of 800, a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Tables Keypad Keyboard Shortcuts In studying his campaign plans, Mr. Singleton wishes to estimate the difference between men's and women's views regarding his appeal as a candidate. He asks his campaign manager to take two random independent samples and find the 98 % confidence interval for the difference. A random sample of 537 male voters and 613 female voters was taken. 303 men and 193 women favored Mr. Singleton as a candidate. Find this confidence interval. Step 1 of 4: Find the values of the two sample proportions, 1 and 2. Round your answers to three decimal places. Answer How to enter your answer (opens in new window) P1 P2 II
Example 8.11 For a class project, a political science student at a large university wants to estimate the percent of students who are registered voters. He surveys 500 students and finds that 300 are registered voters. Compute a 90% confidence interval for the true percent of students who are registered voters, and interpret the confidence interval.
Construct a 95% confidence interval for p1 - p2 for a survey that finds 30% of 240 males and 41% of 200 females are opposed to the death penalty. Group of answer choices a.(-0.200, -0.021) b.(-1.532, 1.342) c.(-1.324, 1.512) d.(-0.561, 0.651)
A politician wants to know what percentage of the voters support her position on the issue of political dynasty. What size voter sample should be obtained to determine with 90% confidence the support level to within 4%? O a. 423 O b. 25 O c. 1691 d. 600 e. 21
Let p be the population proportion of successes, where a success is an adult in the country who would travel into space on a commercial flight if they could afford it. State H0 and Ha. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed.)
On the day before an election in a large city, each person in a random sample of 1,000 likely voters is asked whichcandidate he or she plans to vote for. Of the people in the sample, 55 percent say they will vote for candidateTaylor. A margin of error of 3 percentage points is calculated. Which of the following statements is appropriate?(A)The proportion of all likely voters who plan to vote for candidate Taylor must be the same as the proportionof voters in the sample who plan to vote for candidate Taylor (55 percent), because the data were collectedfrom a random sample.(B) The sample proportion minus the margin of error is greater than 0.50, which provides evidence that morethan half of all likely voters plan to vote for candidate Taylor.(C)It is not possible to draw any conclusion about the proportion of all likely voters who plan to vote forcandidate Taylor because the 1,000 likely voters in the sample represent only a small fraction of all likelyvoters in a large city.(D) It is…
Out of 500 people sampled, 220 preferred Candidate A. Based on this, find a 90% confidence level for the true proportion of the voting population (pp) prefers Candidate A. Give your answers as decimals, to three places.
Out of 600 people sampled, 318 preferred Candidate A. Based on this, estimate what proportion of the voting population (p) prefers Candidate A. Use a 99% confidence level, and give your answers as decimals, to three places.
Suppose 500 different researchers all randomly select samples of n = 300 individuals from a population. Each researcher uses his or her sample to compute a 95% confidence interval for the proportion who have blue eyes in the population. About how many of the confidence intervals will cover the population proportion? About how many of the intervals will not cover the population proportion? Briefly explain how you determined your answers. About About which is % of the 500 computed intervals, should contain the population proportion. which is % of the 500 computed intervals, should not contain the population proportion.
Out of 500 people sampled, 115 preferred Candidate A. Based on this, estimate what proportion of the entire voting population (p) prefers Candidate A. Use a 90% confidence level, and give your answers as decimals, to three places.

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