#12 Provide an appropriate response.12) Determine the point estimate of the population mean and margin of error for the confidence interval withlower bound 17 and upper bound: 39.13) When 470 junior college students were surveyed, 155 said they have a passport. Construct a 95%confidance interval for the nronortion of junior college students that have a passport. Round to the

Answer 12- Given, Lower bound: 17 & Upper bound: 39 Find the…

Answered: Provide an appropriate response. 12)…

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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The 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.)
The 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.)
If n=210 and ˆpp^ (p-hat) =0.86, find the margin of error at a 90% confidence levelGive your answer to three decimals
An investigator has calculated a 95 percent confidence interval for a one-sample t test and found: P{97.0≤μ≤105.0}=0.95. If the investigator wants to test the hull hypothesis H0: μ=100,with α=0.05, the investigator should:
If n=420 and ˆpp^ (p-hat) =0.19, find the margin of error at a 95% confidence level
1. A recent survey showed that from a sample of 500 packages delivered by a Postal Service, 480were delivered on time. a) Construct a 95% confidence interval for the proportion of all packages that are deliveredon time by the Postal Service.
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Find and interpret the 95% confidence interval forμ, if ¯y = 70 and s = 10, based on a sample size of (a) 5,(b) 20.
Construct the indicated confidence interval for the difference between the two population means. Assume thatthe two samples are independent simple random samples selected from normally distributed populations. Do notassume that the population standard deviations are equal.A researcher was interested in comparing the amount of time spent watching television by women andby men. Independent simple random samples of 14 women and 17 men were selected, and each personwas asked how many hours he or she had watched television during the previous week. The summarystatistics are as follows. Construct a 99% confidence interval for μ1 - μ2, the difference between the mean amount of time spentwatching television for women and the mean amount of time spent watching television for men.
The Municipal Transit Authority wants to know if, on weekdays, more passengers ride the north bound blue line train towards the city center that departs at 8:15 a.m. or the one that departs at 8:30 a.m. The following sample statistics are assembled by the Transit Authority. n ?̅ s 8:15 train 30 323 41 8:30 train 45 356 45 a. Construct a 90% confidence interval for the difference in the mean number of daily travelers onthe 8:15 train and the mean number of daily travelers on the 8:30 train.b. Test at the 5% level of significance whether the data provide sufficient evidence to conclude thatmore passengers ride the 8:30 train.
A national opinion poll found that 44% of all American adults agree that parents should be given vouchers that can be applied toward their children's education at any public or private school of their choice. The result was based on a small sample. A)How large an SRS is required to obtain a margin of error of at most 0.03 in a 99% confidence interval? B) Answer the question in part A again but this time By using Phat=0.5. By how much do the two sample size differ?
Suppose that a safety group surveyed 1,100 drivers. Among those surveyed, 65% said that careless or aggressive driving was the biggest threat on the road, and 25% said that cell phone usage by other drivers was the driving behavior that annoyed them the most. Based on these data and assuming that the sample was a simple random sample, construct and interpret a 95% confidence interval estimate for the true proportion in the population of all drivers who are annoyed by cell phone users. The confidence interval estimate is ??––––––??> (Round to three decimal places as needed. Use ascending order.) Interpret the confidence interval estimate. A. There is a 0.95 probability that the population proportion of drivers who are annoyed by cell phone users is in the interval. B. There is 95% confidence that the population proportion of drivers who are annoyed by cell phone users is in the interval. C. There is 95% confidence that the population proportion…

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Provide an appropriate response. 12) Determine the point estimate of the population mean and margin of error for the confidence interval with lower bound 17 and upper bound: 39.