Loose Leaf for Statistical Techniques in Business and Economics
17th Edition
ISBN: 9781260152647
Author: Douglas A. Lind
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 9, Problem 49CE
To determine
Construct a 99% confidence interval for the proportion.
Check whether it is reasonable to conclude that Person M will receive a majority of the votes.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A political researcher takes a survey of 310 randomly selected registered voters in Orlando,
and each person was asked who they plan on voting for in the 2024 presidential election.
110 said they plan on voting for Candidate A, 185 said they plan on voting for Candidate B,
and 15 were unsure or plan to vote for another candidate.
The researcher wants to construct a 95% confidence interval for the proportion of all
registered voters in Orlando who plan to vote for Candidate B.
What is the point estimate? Round final answer to 3 decimal places.
2) The Director of NJ Division of Elections wants to determine the proportion of college students who vote in elections. In a random sample of 250 college students, it was found that 120 students voted in the last election. Construct a 95% confidence interval for the population proportion of college students who vote in elections. Interpret your results.
Ms. Lisa Fong is considering running in the election for the HKBU Student Union President. Before deciding to run in the election, she decides to conduct a poll of 400 HKBU students to what her chances are that she will win. Out of the 400 HKBU students polled, 250 students said they would vote for her, as opposed to the other candidates.
Find the 90% confidence interval for the population proportion of HKBU students who will vote for Ms. Lisa Fong. State any assumption(s) and/or approximation(s).
Based on the confidence interval you found in part (a), can you say that Ms. Lisa Fong has more than a 50% chance to be President of the HKBU Student Union? Please justify your answer.
Chapter 9 Solutions
Loose Leaf for Statistical Techniques in Business and Economics
Ch. 9 - Prob. 1SRCh. 9 - Prob. 1ECh. 9 - A sample of 81 observations is taken from a normal...Ch. 9 - Prob. 3ECh. 9 - Suppose you know and you want an 85% confldence...Ch. 9 - Prob. 5ECh. 9 - Prob. 6ECh. 9 - Prob. 7ECh. 9 - Prob. 8ECh. 9 - Prob. 2SR
Ch. 9 - Prob. 9ECh. 9 - Prob. 10ECh. 9 - Prob. 11ECh. 9 - Prob. 12ECh. 9 - Prob. 13ECh. 9 - Prob. 14ECh. 9 - Prob. 3SRCh. 9 - Prob. 15ECh. 9 - Ms. Maria Wilson is considering running for mayor...Ch. 9 - Prob. 17ECh. 9 - Prob. 18ECh. 9 - Prob. 4SRCh. 9 - Prob. 19ECh. 9 - Prob. 20ECh. 9 - Prob. 21ECh. 9 - Prob. 22ECh. 9 - Prob. 23ECh. 9 - Prob. 24ECh. 9 - Prob. 25ECh. 9 - Prob. 26ECh. 9 - The same study of church contributions in Scandia...Ch. 9 - Thirty-six items are randomly selected from a...Ch. 9 - Forty-nine items are randomly selected from a...Ch. 9 - The attendance at the Savannah Colts minor league...Ch. 9 - There are 300 welders employed at Maine Shipyards...Ch. 9 - Prob. 31CECh. 9 - Prob. 32CECh. 9 - Prob. 33CECh. 9 - Prob. 34CECh. 9 - Prob. 35CECh. 9 - Prob. 36CECh. 9 - Prob. 37CECh. 9 - Prob. 38CECh. 9 - Prob. 39CECh. 9 - Prob. 40CECh. 9 - Prob. 41CECh. 9 - Prob. 42CECh. 9 - Prob. 43CECh. 9 - Prob. 44CECh. 9 - Prob. 45CECh. 9 - Prob. 46CECh. 9 - Prob. 47CECh. 9 - Prob. 48CECh. 9 - Prob. 49CECh. 9 - Prob. 50CECh. 9 - Prob. 51CECh. 9 - Prob. 52CECh. 9 - Prob. 53CECh. 9 - Prob. 54CECh. 9 - Prob. 55CECh. 9 - Prob. 56CECh. 9 - Prob. 57CECh. 9 - Prob. 58CECh. 9 - Prob. 59CECh. 9 - Prob. 60CECh. 9 - Prob. 61CECh. 9 - Prob. 62CECh. 9 - Prob. 63CECh. 9 - Prob. 64CECh. 9 - Prob. 65CECh. 9 - Prob. 66CECh. 9 - A sample of 352 subscribers to Wired magazine...Ch. 9 - Prob. 68CECh. 9 - Prob. 70DACh. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Prob. 3PCh. 9 - Prob. 4PCh. 9 - Prob. 5PCh. 9 - Prob. 6PCh. 9 - Prob. 7PCh. 9 - Prob. 8PCh. 9 - Prob. 9PCh. 9 - Prob. 10PCh. 9 - Prob. 11PCh. 9 - Prob. 12PCh. 9 - Prob. 13PCh. 9 - Prob. 1CCh. 9 - Prob. 1.1PTCh. 9 - Prob. 1.2PTCh. 9 - Prob. 1.3PTCh. 9 - Prob. 1.4PTCh. 9 - Prob. 1.5PTCh. 9 - Prob. 1.6PTCh. 9 - Prob. 1.7PTCh. 9 - Prob. 1.8PTCh. 9 - Prob. 1.9PTCh. 9 - Prob. 1.10PTCh. 9 - Prob. 2.1PTCh. 9 - Prob. 2.2PTCh. 9 - Prob. 2.3PTCh. 9 - Prob. 2.4PT
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- List the sample space of each experiment. Picking a one-digit numberarrow_forwardShow the sample space of the experiment: toss a fair coin three times.arrow_forwardA poll was conducted to examine if people are happy with the government. 400 people were asked and 221 said they were happy with the work of the government. What is the upper limit of a 95% confidence interval for the proportion of voters who are happy with the government?arrow_forward
- An executive for a large company is considering a change to health insurance plans offered to the employees. To assess employee satisfaction with the current plan, the executive sends an email to all company employees asking their opinion of the current plan. A summary of the results received shows that 27% of company employees are "highly satisfied" with the current health insurance plan. Which statement about the results is most likely to be true? O The results may suffer from undercoverage because the opinions of segments of employees may not be recorded, O The results provide an accurate representation of support because the opinion of all employees has been recorded. O The results may suffer from nonresponse bias because many satisfied employees may choose to not respond to the email survey. O The estimate of 27% for employee support of the health plan is likely accurate because all company employees were contacted via email. DellCommand Mark this and return Save and Exit Next…arrow_forwardThe last poll of 144 voters in Iowa shows that 19% of voters will vote for him in the Iowa Presidential Caucus. What is the 99% confidence interval of his support level in Iowa?arrow_forwardCandidate Adams and Candidate Brown are both running for office. When local residents were surveyed, 36% indicated that they would vote for Candidate Adams while 41% indicated they would vote for Candidate Brown. The margin of error for the poll is 2%.a. What is the confidence interval for the true percentage of voters who would vote for Candidate Adams given that 36% of survey-takers said they would vote for him and the margin of error is 2%?The percentage of all voters that we would expect to vote for Candidate Adams is between % and %.b. What is the confidence interval for the true percentage of voters who would vote for Candidate Brown given that 41% of survey-takers said they would vote for him and the margin of error is 2%?The percentage of all voters that we would expect to vote for Candidate Brown is between % and %.arrow_forward
- Candidate Carter and Candidate Donner are both running for office. When local residents were surveyed, 37% indicated that they would vote for Candidate Carter while 32% indicated they would vote for Candidate Donner. The margin of error for the poll is 3%.a. What is the confidence interval for the true percentage of voters who would vote for Candidate Carter given that 37% of survey-takers said they would vote for her and the margin of error is 3%?The percentage of all voters that we would expect to vote for Candidate Carter is between % and %.b. What is the confidence interval for the true percentage of voters who would vote for Candidate Donner given that 32% of survey-takers said they would vote for her and the margin of error is 3%?The percentage of all voters that we would expect to vote for Candidate Donner is between % and %.arrow_forwardWe have taken a simple random sample of 500 residents of a city, and asked them whether they will vote for the female candidate for mayor in the upcoming election. Of the 500 residents, 287 indicate that they will vote for her. Construct the 90% confidence interval for the percentage of residents that will vote for the female candidatearrow_forwardOn November 2, 2014, a Gallup poll reported that 51 percent of Americans support legalizing marijuana, while 47 percent oppose legalization. The reported margin of sampling error was +/- 4 percent. Which of the following inferences can be made from the poll? O More people support marijuana legalization than oppose it. It is unclear whether more people support marijuana legalization than oppose it. More states are passing laws in support of marijuana legalization More states are passing laws in support of marijuana legalization A majority of people under 35 years of age support legalizing marijuanaarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALCollege Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
Statistics 4.1 Point Estimators; Author: Dr. Jack L. Jackson II;https://www.youtube.com/watch?v=2MrI0J8XCEE;License: Standard YouTube License, CC-BY
Statistics 101: Point Estimators; Author: Brandon Foltz;https://www.youtube.com/watch?v=4v41z3HwLaM;License: Standard YouTube License, CC-BY
Central limit theorem; Author: 365 Data Science;https://www.youtube.com/watch?v=b5xQmk9veZ4;License: Standard YouTube License, CC-BY
Point Estimate Definition & Example; Author: Prof. Essa;https://www.youtube.com/watch?v=OTVwtvQmSn0;License: Standard Youtube License
Point Estimation; Author: Vamsidhar Ambatipudi;https://www.youtube.com/watch?v=flqhlM2bZWc;License: Standard Youtube License