A journal article reports that a sample of size 5 was used as a basis for calculating a 95% CI for the true average natural frequency (Hz) of delaminated beams of a certain type. The resulting interval was(229.962, 233.706). You decide that a confidence level of 99% is more appropriate than the 95% level used. What are the limits of the 99% interval? [Hint: Use the center of the interval and its width todetermine x and s.] (Round your answers to three decimal places.)A USE SALTHz

Given: LCL=229.962 UCL=233.706 Sample size, n=5

Answered: A journal article reports that a 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

See similar textbooks

Similar questions

Solve the following problem and give as an answer the LEFT limit of the confidence interval. Write up to two decimal places without rounding. The anthropologist William Howells took data on cranial distances of remains found in Yauyos, Peru. One of the measurements is the distance between basion and bregma, denoted BBH, the data collected in his sample is shown below. Mean: 122.43mm Std Deviation: 3.5159mm The sample size is 101. finds a confidence interval for the variance of the BBH measure of the remains found in Yauyos with a confidence level of 90%.
4. The resilient moduli of 10 samples of a clay mixture are measured and the sample mean is x = 19.50. If an experimenter wishes to use a "known" value o = 1.0 for the standard deviation of the resilient modulus measurements based upon prior experience, construct appropriate 90%, 95%, and 99% two-sided confidence intervals for the average resilient modulus µ. Compare the lengths of the confidence intervals. Do you think it is plausible that the average resilient modulus is equal to 20.0?
Question 2: In order to determine the miles per gallon rating for a new midsize minivan, an automaker randomly selected a sample of 50 vehicles. The showed = 31.56 mpg with s=.798 mpg. At 95% confidence, what is the minimum mpg rating you could give the car?
The production data of a wheat farm are: Plant area: 500 ha Mean yield: 1.5 t/ha • Standard deviation: 0.8 t/ha What fraction of income (output) would the farmer be willing to pay for multi-peril crop insurance if his risk preferences are CRRA with a coefficient of relative risk aversion of 1.5? Hint: (Use the Arrow-Pratt approximation and neglect prudence and temperance.)
The heights of the 1320 lower school students at Poole High School are normally distributed with mean µ and with a standard deviation of 10cm. A sample of size 25 is taken and the mean height of the sample is found to be 161cm. a.) Find the 95% confidence interval for the height of the students.
Medical practitioners are increasingly utilising the Zoom platform. Not only for online meetings but also for consultations with patients. The weekly Zoom access time (in hours) at two hospitals: Health Care I Health Care II needs to be investigated. Given: The weekly access time of medical practitioners at both hospitals is normally distributed with a standard deviation of σ=6 hours. a) Consider the weekly access time at Health Care I Given: X= the weekly access time of a medical practitioner. The mean weekly access time is μ=20 hours. Complete the following: (Round your answers to 4 decimal places.) The probability that the weekly access time of a randomly selected medical practitioner is between 13 and 27 hours is: _______ Only 10% of the medical practitioners had a weekly access time of ______ hours or more. Given: X¯= the average weekly access time of a random sample of n=20 medical practitioners. The standard error of X¯ is σX¯=1.3416 Complete the following:…
Question 1: a) The mean volume of liquid in bottles of lemonade should be at least 2 liters. A sample of bottles is taken in order to test whether the mean volume has fallen below 2 liters. Give a null and alternate hypothesis for this test and specify whether the test would be one-tailed or two-tailed. b) The 95% confidence interval for the mean mass (in grams) of tablets produced by a machine is [0.56 0.57], as calculated from a random sample of 50 tablets. What do you understand from this statement? need complete solution...thank u
All Grace Bo... (1) THE SIYL... Pf ICampuS Login Bb WeeK TI - M... ALEKS Sha... B6 Thread: Wee... O CONFIDENCE INTERVALS AND HYPOTHES. Confidence interval for the... A laboratory in Arizona is imerested in finding the mean chloride level for a healthy resident in the state. A random sample of 90 healthy residents has a mean chloride level of 103 mEq If it is known that the L chloride levels in healthy individuals residing in Arizona have a standard deviation of 42 mEq, find a 95% confidence interval for the true mean L' chloride level of all healthy Arizona residents. Then give its lower limit and upper limit. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: I Upper limit: I Explanation Check Terms of Uee P Y AccOssibility
How many adults should be involved in this study in order to have the mean age estimated up to ±6 months with 92% and 98% confidence levels?
The production data of a wheat farm are: Plant area: 500 ha Mean yield: 1.5 t/ha Standard deviation: 0.8 t/ha What fraction of income (output) would the farmer be willing to pay for multi-peril crop insurance if his risk preferences are CRRA with a coefficient of relative risk aversion of 1.5? Hint: (Use the Arrow-Pratt approximation and neglect prudence and temperance.)
Question 7n A business analyst wants to estimate the average monthly expenditure on bread by a family in Montreal. She wants to be 95% confident of her results, and she wants the estimate to be within $1.00 of the actual figure. Choices below are given as [lower limit, upper limit]. The historical standard deviation of monthly bread purchases is $4.00. What is the required sample size to achieve her estimation accuracy? a) 62 b) 63 c) 44 d) 61

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS