Mathematics, 20.04.2020 23:08 ameliaparry123p2eupk
In a sample of nequals16 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 μ 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?
b. What is the sampling error desired by the researchers?
c. Compute the sample size necessary to obtain the desired estimate.
Answers: 3
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In a sample of nequals16 lichen specimens, the researchers found the mean and standard deviation of...
Mathematics, 22.10.2019 23:50
Mathematics, 22.10.2019 23:50