In Exercises 5–8, use the relatively small number of given bootstrap samples to construct the confidence interval.
6. Seating Choice In a 3M Privacy Filters poll, respondents were asked to identify their favorite seat when they fly, and the results include these responses: window, window, other, other. Letting “window” = 1 and letting “other” = 0, here are ten bootstrap samples for those responses: {0, 0, 0 ,0}, {0, 1, 0, 0}, {0, 1, 0, 1}, {0, 0, 1,0}, {1, 1, 1, 0}, {0, 1, 1, 0}, {1, 0, 0, 1}, {0, 1, 1, 1}, {1, 0, 1, 0 }, {1, 0, 0, 1}. Using only the ten given bootstrap samples, construct an 80% confidence
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Elementary Statistics Third California Edition
- What is meant by the sample space of an experiment?arrow_forwardIn Exercises 5–8, use the relatively small number of given bootstrap samples to construct the confidence interval. Freshman 15 Here is a sample of amounts of weight change (kg) of college students in their freshman year (from Data Set 6 “Freshman 15” in Appendix B): 11, 3, 0, −2, where −2 represents a loss of 2 kg and positive values represent weight gained. Here are ten bootstrap samples: {11, 11, 11, 0}, {11, −2, 0, 11}, {11, −2, 3, 0}, {3, −2, 0, 11}, {0, 0, 0, 3} {3, −2, 3, −2}, {11, 3, −2, 0}, {−2, 3, −2, 3}, {−2, 0, −2, 3}, {3, 11, 11, 11}. a. Using only the ten given bootstrap samples, construct an 80% confidence interval estimate of the mean weight change for the population. b. Using only the ten given bootstrap samples, construct an 80% confidence interval estimate of the standard deviation of the weight changes for the population.arrow_forwardThe business college computing center wants to determine the proportion of business students who have personal computers (PC's) at home, because if the proportion exceeds 25%, then the lab will scale back a proposed enlargement of its facilities. Suppose 300 business students were randomly sampled and 65 have PC's at home. Should they use a hypothesis test or a confidence interval to answer this question? a) Hypothesis test. b) Confidence interval.arrow_forward
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- In Exercises 1–5, use the following survey results: Randomly selected subjects were asked if they were aware that the Earth has lost half of its wildlife population during the past 50 years. Among 1121 women, 23% said that they were aware. Among 1084 men, 26% said that they were aware (based on data from a Harris poll). Biodiversity When using the given sample data to construct a 95% confidence interval estimate of the difference between the two population proportions, the result of (−0.0659, 0.00591) is obtained from technology. a. Express that confidence interval in a format that uses the symbol <. b. What feature of the confidence interval is a basis for deciding whether there is a significant difference between the proportion of women aware of the statement and the proportion of men who are aware?arrow_forwardThe figure to the right shows the results of a survey in which 1005 adults from Country A, 1023 adults from Country B, 995 adults from Country C, 1020 adults from Country D, and 1012 adults from Country E were asked whether national identity is strongly tied to birthplace. Country A37%22%27%49%Country BCountry CCountry DCountry E10% Construct a 99% confidence interval for the population proportion of adults who say national identity is strongly tied to birthplace for each country listed. The 99% confidence interval for the proportion of adults from Country B who say national identity is strongly tied to birthplace is enter your response here ,enter your response here . (Round to three decimal places as needed.)arrow_forwardThe figure to the right shows the results of a survey in which 1005 adults from Country A, 1023 adults from Country B, 995 adults from Country C, 1020 adults from Country D, and 1012 adults from Country E were asked whether national identity is strongly tied to birthplace. Country A37%22%27%49%Country BCountry CCountry DCountry E10% Construct a 99% confidence interval for the population proportion of adults who say national identity is strongly tied to birthplace for each country listed. Question content area bottom Part 1 The 99% confidence interval for the proportion of adults from Country A who say national identity is strongly tied to birthplace is (enter your response here ,enter your response here ). (Round to three decimal places as needed.)arrow_forward
- 1.A group of researchers want to find out what is the percentage of men planning to vote for vice resident Biden in the coming presidential election. They take a survey of 300 registered voters that are planning to vote including 180 from men. Find a 95% confidence interval for the true proportion of men planning to vote for Bidenarrow_forward3) A random sample of 100 students at a high school was asked whether they would ask their father or mother for help with a financial problem. A second sample of 100 different students was asked the same question regarding a dating problem. Forty-three students in the first sample and 47 students in the second sample replied that they turned to their mother rather than their father for help. Construct a 98% confidence interval for p1-p2arrow_forward4) When 328 college students are randomly selected and surveyed, it is found that 122 own a car. Find a99% confidence interval for the true proportion of all college students who own a car. Group of answer choices 0.328 < p < 0.416 0.320 < p < 0.424 0.310 < p < 0.434 0.303 < p < 0.441arrow_forward
- College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning