estimate from your bootstrap distribution in the previous step (show calculations).Use the 95%e. Is it plausible that there is no time savings from the flexible system?confidence interval to answer. If so, explain why. If not, interpret the confidence interval.Sections 3.1-3.4ΜΑΤΗ 1342Page 1 of 22. The meaning of 95% confidence. Which of the following best explains the meaning of 95% confidencein the interval given in the last question? Check only one.O The population mean is in this interval 95% of the timeO The population mean is believed to be in the interval. The methodology used to find this interval iscorrect 95% of the time.O There is a 95% chance that the sample mean from any random sample is in the interval.3. 3.128 Who Smokes More: Male Students or Female Students? Data 1.1 includes lots of information on asample of 362 college students. The complete dataset is available at StudentSurvey. We see that 27 of the193 males in the sample smoke, while 16 of the 169 females in the sample smoke. We will investigate thedifference in proportions of male and female students who smoke.a. What parameter(s) are we trying to estimate? Give correct notation and a brief writtendescription.b. What is the best point estimate for the difference in the proportions of smokers? Use correctnotation and include the value.c. Use Statkey to find a 99% bootstrap confidence interval using percentiles (attach screen shot withyour homework submission, and write the confidence interval here):d. Find a 95% bootstrap confidence interval using margin of error, based on the standard errorestimate from your bootstrap distribution in the previous step (show calculations).e. Is it plausible that the proportions of male and female students who smoke is the same?Use the 99% confidence interval to answer. If so, explain why. If not, interpret the confidenceinterval.Sections 3.1-3.4МАТH 1342Page 2 of 2II 1. 3.92 Better Traffic Flow. The dataset TrafficFlow gives delay time in seconds for 24 simulation runs inDresden, Germany, comparing the current timed traffic light system on each run to a proposed flexibletraffic light system in which lights communicate traffic flow information to neighboring lights. Since this isa matched pairs experiment, the variable Difference represents the time savings from the flexible system(Fixed – Flexible) for each run of the simulation. We wish to estimate the average time savings for publictransportation on this stretch of road if the city of Dresden moves to the new system. Set this up as a singlemean because it comes from one quantitative variable.What parameter are we estimating? Give correct notation and a brief written description.a.b. Answer these questions to establish the process of generating one bootstrap sample:i. What sample size would you use for your bootstrap sample?ii. Would you sample with or without replacement?iii. What statistic would you record for this one bootstrap sample? Use correct notation:c. Use Statkey to find a 90% bootstrap confidence interval for the mean time savings, usingpercentiles. Use a few thousand samples. Attach a screen shot showing the percentiles with yourhomework submission, and write the confidence interval here:d. Find a 95% bootstrap confidence interval using margin of error, based on the standard errorestimate from your bootstrap distribution in the previous step (show calculations).e. Is it plausible that there is no time savings from the flexible system?confidence interval to answer. If so, explain why. If not, interpret the confidence interval.Use the 95%Sections 3.1-3.4MATH 1342Page 1 of 22. The meaning of 95% confidence. Which of the following best explains the meaning of 95% confidencein the interval given in the last question? Check only one.O The population mean is in this interval 95% of the timeO The population mean is believed to be in the interval. The methodology used to find this interval iscorrect 95% of the time.O There is a 95% chance that the sample mean from any random sample is in the interval.3. 3.128 Who Smokes More: Male Students or Female Students? Data 1.1 includes lots of information on asample of 362 college students. The complete dataset is available at StudentSurvey. We see that 27 of the193 males in the sample smoke, while 16 of the 169 females in the sample smoke. We will investigate thedifference in proportions of male and female students who smoke.a. What parameter(s) are we trying to estimate? Give correct notation and a brief writtendescription.b. What is the best point estimate for the difference in the proportions of smokers? Use correctnotation and include the value.II

Name: estimate from your bootstrap distribution in the previous step (show
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: estimate from your bootstrap distribution in the previous step (show calculations).Use the 95%e. Is it plausible that there is no time savings from the flexible system?confidence interval to answer. If so, explain why. If not, interpret the confiden

Math

Statistics

2. The meaning of 95% confidence. Which of the following best explains the meaning of 95% confidence in the interval given in the last question? Check only one. O The population mean is in this interval 95% of the time O The population mean is believed to be in the interval. The methodology used to find this interval is correct 95% of the time. O There is a 95% chance that the sample mean from any random sample is in the interval.

2. The meaning of 95% confidence. Which of the following best explains the meaning of 95% confidence in the interval given in the last question? Check only one. O The population mean is in this interval 95% of the time O The population mean is believed to be in the interval. The methodology used to find this interval is correct 95% of the time. O There is a 95% chance that the sample mean from any random sample is in the interval.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Which statement about a confidence interval is true? O There is a 95% probability that the true proportion is this interval. O 95% of the time, the sample proportion and the true proportion will be the same. O The interval contains 95% of the true proportion. O 95% of intervals constructed this way will contain the true proportion. O There is a 95% chance that the sample proportion is in the interval.
You are interested in finding a 98% confidence interval for the average commute that non-residential students have to their college. The data below show the number of commute miles for 11 randomly selected non-residential college students. Round answers to 3 decimal places where possible. 18 18 27 17 15 7 11 15 9 12 19 a. With 98% confidence the population mean commute for non-residential college students is between _____ and____miles. b. If many groups of 11 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About (____) percent of these confidence intervals will contain the true population mean number of commute miles and about(_____) percent will not contain the true population mean number of commute miles.
You construct a 95% confidence interval for a population mean using a random sample. The confidence interval is 24.9<u<31.5. Is the probability that u is in this interval 0.95? Explain. Choose the correct answer below. A. No. If a large number of samples are taken the probability that the mean is in the interval is 0.95. B. No. With 95% confidence, the mean is in the interval (24.9, 31.5) C. Yes. The probability that u is in this interval is 0.95. D. No. Approximately 95% of the sampled data will fall in the confidence interval.
A psychiatrist is interested in finding a 98% confidence interval for the tics per hour exhibited by children with Tourette syndrome. The data below show the tics in an observed hour for 11 randomly selected children with Tourette syndrome. Round your decimal 3 places. 1,12,11,6,10,1,4,7,8,1,9 With 98% confidence the population mean number of tics per hour that children with Tourette syndrome exhibit is between ____ and ____ If many groups of 11 randomly selected children with Tourette syndrome are observed, then a different confidence interval would be produced from each group. About ____ percent of these confidence intervals will contain the true population mean number of tics per hour and about ____ percent will not contain the true population mean number of tics per hour.
Construct a 95% confidence interval for p1 - p2 for a survey that finds 30% of 240 males and 41% of 200 females are opposed to the death penalty. Group of answer choices a.(-0.200, -0.021) b.(-1.532, 1.342) c.(-1.324, 1.512) d.(-0.561, 0.651)
Need ASAP
6
A random sample of 12 cats was collected to study the lifespan with the data listed below. Find the 87% confidence interval for the population mean. Round all values to two decimals. 13, 15, 18, 16, 8, 12, 13, 15, 8, 13, 12, 11. Provide your answer below.
Please answer the last two as stated by the tutor
ok In a survey of 2279 adults, 720 say they believe in UFOs. Construct a 95% confidence interval for the population proportion of adults who believe in UFOs. A 95% confidence interval for the population proportion is (Round to three decimal places as needed.) Interpret your results. Choose the correct answer below. R OA. With 95% confidence, it can be said that the population proportion of adults who believe in UFOs is between the endpoints of the given confidence interval. OB. With 95% probability, the population proportion of adults who do not believe in UFOs is between the endpoints of the given confidence interval. OC. With 95% confidence, it can be said that the sample proportion of adults who believe in UFOs is between the endpoints of V C ◎可 F5 J % 250 T F6 دار 6 & X F7 & 7 N 8 F8 J 00 * 8 8 F9 M 09 9 K F10 O V 70°F Sunny A ☀- F11 O Alt ☀ P + F12 ^ Next 1:23 PM 11/23/2022 PrtSc CM +11 Inse
9 The standard error of the mean is, a 0.881 b 0.735 c 0.612 d 0.510
7b) see picture