To sulg3000mConstructing Confidence Intervals In Exercises 25 and 26, use thefollowing information. The table shows the results of a survey in which 400 adultsfrom the East, 400 adults from the South, 400 adults from the Midwest, and 400adults from the West were asked if traffic congestion is a serious problem in theircommunity. (Adapted from The Harris Poll)Bad Traffic Congestion?Adults who say that traffic congestionis a serious problemEastSouthMidwestWest1071910 nigCO26. Midwest and WestOR POPULATION PROPORTIONS36%32%26%56%341Construct a 99% confidence interval for(a) the proportion of adults from the Midwest who say traffic congestion isa serious problem.(b) the proportion of adults from the West who say traffic congestion is aserious problem. Is it possible that these two proportions are equal?Explain your reasoning.

Given: East 0.36 South 0.32 Midwest 0.26 West 0.56

Answered: Bad Traffic Congestion? Adults who say…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The Question for this is: How do Best Rest customers feel about purchasing a mattress online? I guess I just need help figuring out how I would tackle this problem using this data set (this is not all the numbers in the set), should i use a hypothesis test or correlation test, etc.?
Getting a Job. The National Association of Colleges and Employers sponsors the Graduating Student and Alumni Survey. Part of the survey gauges student optimism in landing a job after graduation. According to one year’s survey results, published in American Demographics, among the 1218 respondents, 733 said that they expected difficulty finding a job. Note: In this problem and the next, round your proportion answers to four decimal places. a. Use these data to find and interpret a 95% confidence interval for the proportion of students who expect difficultyfinding a job.b. Find the margin of error for the estimate of p.c. Express the confidence interval in the form point estimate ± margin of error.
Justice in the Courts? In an issue of Parade Magazine, the editors reported on a national survey on law and order. One question asked of the 2512 U.S. adults who took part was whether they believed that juries “almost always” convict the guilty and free the innocent. Only 578 said that they did. At the 5% significance level, do the data provide sufficient evidence to conclude that less than one in four Americans believe that juries “almost always” convict the guilty and free the innocent?
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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)
Suppose you want to construct an 80% confidence interval for the proportion of businesses that provide incentives to their workers. Ifyou want a marginof error of 3.5%, how many business entities must you survey?
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