(Answered) The mean soil iron concentration was determined to be 42

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The mean soil iron concentration was determined to be 42 µg/kg with a standard deviation of 16 µg/kg for soil samples taken from a local golf course. Calculate the confidence limits for this sample for each of the following cases - Be sure to show the calculations needed to solve each problem in the space provided on the Part IV worksheet:

a) 95% confidence limits where sample size (n) equals 12.

b) Write a brief "plain language" summary of what your calculations in part "a" means.

b) 95% confidence limits where sample size (n) equals 20.

c) 99% confidence limits where sample size (n) equals 20

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