You want to obtain a sample to estimate a population mean age. Based on previous evidence, you believe the population standard deviation is approximately $ \sigma = 5.1 $ years. You would like to be 90% confident that your estimate is within 2.5 years of the true population mean. How large of a sample size is required? *Give the minimum size that will work.*\[ n = \] [Input field]

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Answered: You want to obtain a sample to estimate…

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 want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.68. You would like to be 97% confident that your estimate is within 2.5% of the true population proportion. How large of sample size is required n =
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You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the population proportion. You would like to be 99% confident that you esimate is within 0.5% of the true population proportion. How large of a sample size is required?n = Do not round mid-calculation. However, use a critical value accurate to three decimal places.
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.87. You would like to be 97% confident that your esimate is within 4% of the true population proportion. How large of a sample size is required? Hint: Video [+] n =
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