9. A Gallup poll conducted May 2-7, 2013, by telephone interviews (both landlines and cellular phones) of 1535 American adults found that 59% of Americans regarded gay and lesbian relations as morally acceptable.Give a 95% confidence interval for this survey.(Answer 1,_Answer 2Give your answers to 3 decimal places.Answer 1Answer 2

Z score corresponsing to probability of 0.975 = 1.96

Answered: 9. A Gallup poll conducted May 2-7,…

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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A research institute poor ass respondents if they felt vulnerable to identity theft. In the pool, N equals 1017 and X equals 532 who said yes. Use a 95% confidence level.
You recently sent out a survey to determine if the percentage of adults who use social media has changed from 58%, which was the percentage of adults who used social media five years ago. Of the 2670 people who responded to survey, 1767 stated that they currently use social media. a) Use the data from this survey to construct a 93% confidence interval estimate of the proportion of adults who use social media. Record the result below in the form of (#, #). Round your final answer to four decimal places.
If 390 people were asked if they liked dogs, and 82% said they did What is the margin of error of this poll, at the 95% confidence level with your answer to three decimals?
If the average of the data set given below as a missing ('*') value is 7.5, calculate the Q1 (lower quartile) value for this set.
The 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?
One personality test available on the World Wide Web has a subsection designed to assess the "honesty" of the test-taker. You are interested in the mean score, μ , among the general population on this subsection. The website reports that μ is 145, but you have good reason to believe that μ is less than 145. You decide to do a statistical test. You choose a random sample of people and have them take the personality test. You find that their mean score on the subsection is 139 and that the standard deviation of their scores is 28. Based on this information, complete the parts below. (a) What are the null hypothesis H0 and the alternative hypothesis H1that should be used for the test? H0: H1: (b) Suppose that you decide to reject the null hypothesis. What sort of error might you be making? ▼(Choose one) (c) Suppose the true mean score among the general population on the subsection is 136. Fill in the blanks to describe a Type II error. A Type II error…
In a recent poll 240 people were asked if they like dogs and 75% said they did. find the margin of error of this pole at the 99% confidence level.
A magazine invited women to visit their site to complete a surgery and 1500 respondents responses were recorded. When asked whether they would rather have more money or more sleep, 88% responded more money and 12% responded more sleep. How do I answer the questions with this information? 1) identify the variable in this study. 2) is the variable quantitative or qualitative? 3) what is the sample in this study? 4) what is the implied population?
Students at a certain college were asked if they have a car. After surveying 354 students, it was found that 26.7% of them have a car. The margin of error was 4.7% with a 95% confidence ievel. What does this margin of error tell you about the percentage of students at that college who have a car? We can be 95% confident that somewhere between % and % of the students at that college have a car.
One personality test available on the World Wide Web has a subsection designed to assess the "honesty" of the test-taker. You are interested in the mean score, μ , among the general population on this subsection. The website reports that μ is 145 , but you have good reason to believe that μ is less than 145 . You decide to do a statistical test. You choose a random sample of people and have them take the personality test. You find that their mean score on the subsection is 140 and that the standard deviation of their scores is 22 . Based on this information, complete the parts below. (a) What are the null hypothesis H0 and the alternative hypothesis H1 that should be used for the test? H0: H1: (b) Suppose that you decide not to reject the null hypothesis. What sort of error might you be making? ▼(Choose one) (c) Suppose the true mean score among the general population on the subsection is 137 . Fill in the blanks to describe…
One personality test available on the World Wide Web has a subsection designed to assess the "honesty" of the test-taker. You are interested in the mean score, μ, among the general population on this subsection. The website reports that μ is 140, but you have good reason to believe that μ differs from 140. You decide to do a statistical test. You choose a random sample of people and have them take the personality test. You find that their mean score on the subsection is 146 and that the standard deviation of their scores is 22. Based on this information, complete the parts below. A. What are the null hypothesis H0 and the alternative hypothesis H1 that should be used for the test? H0: H1: B. Suppose you decide to reject the null hypothesis. Would you be making a type I or type II error?

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