In a sample of n=17 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 0.003 microcurie
per milliliter, respectively. Suppose the researchers want to
increase the sample size in order to estimate the
mean μ to within 0.001 microcurie per
milliliter of its true value, using a 95% confidence
interval. Complete parts a through c.
Question content area bottom
Part 1
a. What is the confidence level desired by
the researchers?
The confidence level is. enter your response here.
Part 2
b. What is the sampling error desired by
the researchers?
The sampling error is. enter your response here.
Part 3
c. Compute the sample size necessary to obtain the desired
estimate.
The sample size is. enter your response here.
(Type a whole number.)
In a sample of n=17 lichen specimens, the researchers found the mean and standard deviation of the amount of the radioa
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In a sample of n=17 lichen specimens, the researchers found the mean and standard deviation of the amount of the radioa
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