Course HomeYou are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the populationmean. Interpret the results and compare the widths of the confidence intervals.AssignmentsFrom a random sample of 56 dates, the mean record high daily temperature in a certain city has a mean of 84.35°F. Assume the population standard deviation is13.60°F.GradebookThe 90% confidence interval isChapter Contents(Round to two decimal places as needed.)eТextMultimedia LibraryStudy PlanTools for SuccessAccessible Resources,Skills for SuccessHelp me solve thisView an exampleGet more help-Media -Clear allCheck answerPermissionsContact UsCopyright c 2021 Pearson Equcation ihc. All rights reserved. lerms of Use| Privacy Policy46°F A @ O a23Type here to searchXL-BTY10/05/17InsertDeletePriScF11F12F9F10F7F8EscF5F6F2F3F4F1Backsp&7080LC%24

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Answered: Course Home You are given the sample…

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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You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals. A random sample of 35 home theater systems has a mean price of $145.00. Assume the population standard deviation is $18.10. Construct a 90% confidence interval for the population mean. The 90% confidence interval is (139.97, 150.03). (Round to two decimal places as needed.) Construct a 95% confidence interval for the population mean. The 95% confidence interval is ( 139 , 151). (Round to two decimal places as needed.) Interpret the results. Choose the correct answer below O A. With 90% confidence, it can be said that the sample mean price lies in the first interval. With 95% confidence, it can be said that the sample mean price lies in the second interval. The 95% confidence interval…
You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 74 dates, the mean record high daily temperatur in a certain city has a mean of 85.27°F. Assume the population standard deviation is 14.71°F. Which interval is wider? Choose the correct answer below. The 95% confidence interval O The 90% confidence interval Interpret the results. A. You can be 90% confident that the population mean record high temperature is between the bounds of the 90% confidence interval, and 95% confident for the 95% interval. B. You can be certain that the mean record high temperature was within the 90% confidence interval for approximately 67 of the 74 days, and was within the 95% confidence interval for approximately 70 of the 74 days. C. You can be certain that the population mean record high…
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The 90% confidence interval for the population proportion p is The 95% confidence interval for the population proportion p is With the given confidence, it can be said that the of adults who say they have made a New Year's resolution is of the given confidence interval. Compare the widths of the confidence intervals. Choose the correct answer below. A. The 90% confidence interval is wider. B. The 95% confidence interval is wider. C. The confidence intervals are the same width. D. The confidence intervals cannot be compared.
You are given the sample mean and the population standard deviation. Use this information convenient, use technology to construct the confidence intervals. construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If A random sample of 60 home theater systems has a mean price of $130.00. Assume the population standard deviation is $17.40. Construct a 90% confidence interval for the population mean. The 90% confidence interval is ( ). (Round to two decimal places as needed.) Construct a 95% confidence interval for the population mean. The 95% confidence interval is ( ). (Round to two decimal places as needed.) Interpret the results. Choose the correct answer below. O A. With 90% confidence, it can be said that the population mean price lies in the first interval. With 95% confidence, it can be said that the population mean price lies in the second interval. The 95% confidence interval is wider than…
The mean of a sample of 21 people who were playing the slot machines is 50.6 years, and the standard deviation is 6.8 years. The mean age of a sample of 30 people who were playing roulette is 53.6 with a standard deviation of 3.2 years. Can it be concluded at a=0.01 that mean age of those playing the slot machines is less than those playing roulette? Only typing answer Please answer explaining in detail step by step without table and graph thankyou
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You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals. A random sample of 35 home theater systems has a mean price of$134.00. Assume the population standard deviation is $18.70. Construct a 90% confidence interval for the population mean. The 90% confidence interval is _____ (Round to two decimal places as needed) Construct a 95% confidence interval for the population mean. The 95% confidence interval is _____ (Round to two decimal places as needed)
The mean mark on a state-administered mathematics exam by a 10th grade class in Smalltown, Wisconsin, was 95%, while the mean mark on the same exam by 10th grade students in the entire state of Wisconsin was reported to be only 78%. This suggests that the mean can be __________. a a parameter or a statistic b a parameter only c a statistic only d neither a parameter nor a statistic
You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals. A random sample of 55 home theater systems has a mean price of $117.00.Assume the population standard deviation is $17.40. Construct a 90% confidence interval for the population mean. The 90% confidence interval is (enter your response here,enter your response here). (Round to two decimal places as needed.) Construct a 95% confidence interval for the population mean. The 95% confidence interval is (enter your response here,enter your response here). (Round to two decimal places as needed.) Interpret the results. Choose the correct answer below. A. With 90% confidence, it can be said that the population mean price lies in the first…
You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals A random sample of 50 home theater systems has a mean price of $125.00. Assume the population standard deviation is $16.40. Construct a 90% confidence interval for the population mean. The 90% confidence interval is ( | ). (Round to two decimal places as needed.) Construct a 95% confidence interval for the population mean. The 95% confidence interval is ( ) (Round to two decimal places as needed.) Interpret the results. Choose the correct answer below. O A. With 90% confidence, it can be said that the population mean price lies in the first interval. With 95% confidence, it can be said that the population mean price lies in the second interval. The 95% confidence interval is wider…

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