Mathematics

Mathematics, 25.07.2019 23:30, 4804174946

Asurvey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. construct the 95% confidence interval for the true proportion of all voters in the state who favor approval.

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Mathematics, 23.06.2019 13:30, Fire8615

Asurvey of 300 union members in new york state reveals that 112 favor the republican candidate for governor. construct the 98% confidence interval for the true population proportion of all new york state union members who favor the republican candidate.

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Mathematics, 24.06.2019 04:00, smokey13

Asurvey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. construct the 95% confidence interval for the true proportion of all voters in the state who favor approval. 0.435 < p < 0.508 0.438 < p < 0.505 0.471 < p < 0.472 0.444 < p < 0.500

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Mathematics, 24.07.2019 00:00, cat20220

Apoll of 2,210 likely voters was conducted on the president's performance. approximately what margin of error would the approval rating estimate have if the confidence level is 95%? (round your answer to 4 decimal places.) margin of error (b) the poll showed that 48 percent approved the president's performance. construct a 90 percent confidence interval for the true proportion. (round your answers to 4 decimal places.) the 90% confidence interval to (c) would you agree that the percentage of all voters opposed is likely to be 50 percent? no, the confidence interval does not contain .50. yes, the confidence interval contains .50.

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Mathematics, 09.08.2019 19:10, montanolumpuy

Suppose that you have a sample size n = 100 with mean x = 5 and standard deviation s = 2, and that you are to construct a confidence interval for the population mean \mu μ . if, after you obtain the confidence interval, you find it to be too wide, which of the following remedial steps can you take to reduce the width of the confidence interval? a. to construct a 90% confidence interval instead of a 95% one. b. to construct a 99% confidence interval instead of a 95% one. c. to re-do the 95% confidence interval with only a half pf the sample data.

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