On November 2, 2014, a Gallup poll reported that 51 percent of Americans support legalizingmarijuana, 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 ofmarijuana legalizationA majority of people under 35 years of age support legalizing marijuana

It is unclear whether more people support marijuana legalization than oppose it.

Answered: On November 2, 2014, a Gallup poll…

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

In a 2021 poll by the Public Religion Research Institution, 2,508 Americans were asked if they agree with the statement, “Violence may be necessary to save the US.” (American Values Survey Sept 16-29, 2021). In the responses, 30% of Republicans, 11% of Democrats, and 17% of Independents agreed with the statement. Overall, 18% of the respondents agreed with the statement. Given a 2.1% margin of error, what is an estimate of the population standard deviation at a 90% level of confidence
The accuracy of a census report on a city in southern California was questioned by some government officials. A random sample of 1215 people living in the city was used to check the report, and the results are shown below.
A principal mails a letter to all parents asking them whether or not she should spend $50,000 to renovate the school gym. What type of bias will this lead to? (choose the best answer) A Response Bias C Measurement Bias B Non-response Bias D Sampling Bias
A geography student in Parkville, Missouri is conducting a housing survey, including questions about a proposed rent control initiative. She knows that about 38% of the people in Parkville live in apartments, and wants about 38% of the surveys given to apartment dwellers. What kind of sampling should she use?
A CBS News/New York Times opinion poll asked 1050 adults whether they would prefer balancing the federal budget over cutting taxes; 602 of those asked said "Yes." The poll was carried out by telephone, so people without phones are always excluded from the sample. Any errors in the final result due to excluding people without phones are in addition to the announced margin of error. O are included in the announced margin of error. 4 can be ignored, because these people are not part of the population. O can be ignored, because this is a nonsampling error.
A coach is interested in how many slam dunks the average college seniors at his university can do. Ten volunteers from the senior class step forward. After observing their performance, the coach concludes that college seniors can do an average of 10 slam dunks in a row without missing. a. What is the sample? b. What is the population?
From December 11–15, 2019, Quinnipiac University conducted a survey of 1,390 registered voters from across the United States over both landline and cell phones. When asked how much attention they were paying to news about Trump’s impeachment, 59% of those surveyed responded they were paying “a lot of attention,” 26% stated they were paying “some attention,” and 15% were paying “only a little attention or none at all.” Source Identify the population that the study aims to make conclusions about. _____________________ Identify the sample that was studied._______________
A pollster randomly selects a proportional amount of Democrats and Republicans to be in a sample, but does not include any other parties. The results are used in an article about what Americans think. This is an example of Answer. A researcher decides to use cluster sampling. Penguins are groups based on species and then three groups are selected to be in a study. The other species are not represented in the sample. This is an example of Answer. A successful company hired a new research firm to test the effectiveness of their new fitness workout. The researcher firm told the researchers conducting the study that they really needed to retain the company as a client for future business. The researchers created tests that were favorable to the companies desired results. This is an example of Answer
A dentist wants to a conduct a survey via telephone to determine what percent of all adults in their city floss daily. Which of these is the best example of response bias? Some people might not answer their phone after repeated calls. People with unlisted phone numbers or people with cell phones might be left out of the sample. Some people might refuse to tell a stranger on the phone about their flossing habits. Some people might feel pressured to say they floss even though they don’t.
Which of the following are sources of sampling error and which are sources of nonsampling error? Sampling error Nonsampling error Answer Bank The subject lies about past illegal drug use. The subject cannot be contacted in five calls. The telephone directory is used as a sampling frame. Interviewers choose people on the street to interview. Data are gathered by asking people to go to a website and answer questions online. A typing error is made in recording the data.
A website posts evaluations on airlines. It posts the most positive and the most negative comments for each airline. Discuss the usefulness of this feedback for a reader wanting to know about the airline. Choose the correct statement below. Select all that apply. A. The reader cannot accurately assess the airline because the method of choosing the sample is unclear. B. The reader can accurately assess the airline based on the posted evaluations. C. The reader cannot accurately assess the airline without reading all of the evaluations. D. The reader cannot accurately assess the airline because the evaluations posted are not necessarily representative of all the evaluations.
In 2014, Scotland was considering independence from England, going so far as to take a referendum vote. One opinion poll taken at the time showed that 51% of Scots favored "independence." In another poll taken at that same time, only 34% favored being "separate" from England. The primary reason these results differed by so much is that a. samples will usually differ just by chance due to random sampling. b. the wording of questions has a big effect on poll results. c. more follow-up efforts reduced the nonresponse rate of the second poll. d. the sample sizes are different, so the margins of error are different.

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS