In a sample ofn = 15 lichen specimens, the researchers found the mean and standard deviation of the amount of the radioactive element, cesium-137, that was present to be 0.009 and 0.004 microcurie per milliliter, respectively. Suppose the researchers wantto increase the sample size in order to estimate the mean u to within 0.002 microcurie per milliliter of its true value, using a 95% confidence interval. Complete parts a through c.a. What is the confidence level desired by the researchers?The confidence level isb. What is the sampling error desired by the researchers?The sampling error isc. Compute the sample size necessary to obtain the desired estimate.The sample size is(Type a whole number.)

Answered: Image /qna-images/answer/bb583305-0c47-4110-878a-abe6282299a9.jpg

Answered: In a sample of n= 15 lichen specimens,…

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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In a sample of n= 19 lichen specimens, the researchers found the mean and standard deviation of the amount of the radioactive element, cesium-137, that was present to be 0.009 and 0.005 microcurie per milliliter, respectively. Suppose the researchers want to increase the sample size in order to estimate the mean u to within 0.002 microcurie per milliliter of its true value, using a 95% confidence interval. Complete parts a through c. a. What is the confidence level desired by the researchers? The confidence level is.
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