A TV news reporter says that a proposed constitutional amendment is likely to win approval in the upcoming election because a poll of 541 likely voters indicatedthat 53% would vote in favor. The reporter goes on to say that the margin of error for this poll was 5%. Complete parts a and b below.a) Explain why the poll is actually inconclusive. Choose the correct answer below.O A. The poll is inconclusive because the standard error of the sample proportion is less than 0.50.O B. The poll is inconclusive because the margin of error is too large.OC. The poll is inconclusive because the sample size is too small.O D. The poll is inconclusive because 50% is included in the confidence interval.b) What confidence level did the pollsters use?The pollsters used a% confidence level.

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Answered: ATV news reporter says that a proposed…

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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point) A choral conductor has 1124 singers in her choir, some of them are professional singers. The conductor wants to estimate what percentage of singers are professional, but can't ask all 1124, so she instead asks 678 singers in front and finds 16 who are professionals. (a) Identify the population A. entire singers B. 16/1124 C. percentage of entire singers who are professional D. None of the above. (b) Identify the statistic. A. 16/678 B. entire choir members C. 1124 D. None of the above. (c) Identify the sample. A. 678 B. singers who were asked C. 16/1124 D. None of the above. (d) Identify the parameter A. percentage of entire singers who are professional B. range of values in which 95% values fall C. 16 D. None of the above.
A random sample of 72 households was selected for a phone survey. The key question asked was, "Do you or any member of your household own a product from Company A?" Of the 72 respondents, 36said yes and 36 said no. a. Determine the sample proportion, p, of households that own a Company A product. b. If the population proportion is 0.70, determine the standard error of the proportion.
Show the necessary solutions pls. Round-off, ONLY, the FINAL ANSWER to the nearest hundredths.
Hi Expert, I need help. Thanks :) If we took three different samples of college students (one from California, one from Arizona, and one from Alaska) and each sample had 500 students, what do you believe the sampling distribution for age would look like? What about for parent’s annual income? What about for number of snow days? Explain each response.
Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.
You see the following headline on the news: "A new political poll finds that less than 20% of Americans are happy with the new Common Core standards in education".At the bottom of the television screen you see that a sample of 46 Americans were polled. Explain why this might represent sampling bias and give one solution to reduce the potential bias.
A 2010 survey asked 823 randomly sampled registered voters in California "Do you support or oppose drilling for oil and natural gas off the coast of California? Or, do you not know enough to say?" The responses were separated based on whether or not the respondent graduated from college. College Graduate Not a College Graduate Support 153 139 Oppose 190 124 Do Not Know 106 111 Total 449 374 (a) Find the following proportions: Pcollege grads; do not know = .23608 Pnoncollege grads; do not know = .29679 (b) Conduct a hypothesis test to determine if this difference is statistically significant (Pcollege grads; do not know Pnoncollege grads; do not know) and - thus determine whether the data provide strong evidence that the proportion of college graduates who do not have an opinion on this issue is different than that of non-college graduates. Test Statistic = P-Value =
According to the Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft. This year, a certain state kept track of how many of its 1380 complaints were for identity theft. They want to know if the data provide enough evidence to show that this state had a different proportion of identity theft than 23%. State the sample statistic, population parameter, and hypotheses.a) The sample statistic in context is: Select an answer A randomly selected complaint filed with the FTC for that state. The percentage of 1380 randomly selected complaints filed with the FTC for that state that are for identity theft. The percentage of all complaints filed with the FTC for that state that are for identity theft. The mean number of all complaints filed with the FTC for that state that are for identity theft. The mean number of 1380 randomly selected complaints filed with the FTC for that state that are for identity theft. A randomly…
There are 15 mobile phones in a package box, 8 of which are iphones. If a person takes 5 phones from the box. What is the mean of the number of iphones in the sample? (Input answer in 4 decimal places)
if the 90% Ci for the population mean is ( -2.58, 7.54) what is the sample mean О a. 2.48 Оb. 10.12 O c. 5.06 O d. can't be found
Suppose 500 people in the sample of 1,007 adults were women. Gallup asked these 500 women. "What is your favorite Summer Olympic event?" Thirty-five percent said swimming was their favorite. Gallup gave a margin of error for this result. A) ....Plus or minus 3 percentage points just as for the overall poll B)...greater than plus or minus 3 points becuase the sample for this question is smaller C)...less than plus or minus 3 points because the population of swimming fans is smaller than the population of all adults D)...Less than plus or minus 3 points becuase the sample for this question is smaller
5. Critical Thinking ProblemIn a Wakefield Research Survey, respondents were asked if they were hesitated to give ahandshake because of a fear of germs. Of the respondents, 411 answered “yes” and 592said “no”. We want to test the claim that ? < 0.5, where p denotes the proportion of“yes” respondents for the population. Use ? = 0.05.a. What is the sample proportion of yes respondents, and what notation is used torepresent it?b. What is the P-value? Write your answer using ordinary notation.c. What does the P-value suggest about the claim?

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