In a sample of n = 17 lichen specimens, the researchers found the mean and standard deviation of the amount of the radio
Posted: Sun Jul 10, 2022 10:22 am
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 0.006 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? The confidence level is