A traditional method of verifying mineralization grades in mining is to drill twinned holes. i.e., the drilling
Question:
a. Explain why the data should be analyzed as paired differences.
b. Compute the difference between the "1st Hole" and "2nd Hole" measurements for each drilling location.
c. Find the mean and standard deviation of the differences, part b.
d. Use the summary statistics, part c, to find a 90% confidence interval for the true mean difference ("1st Hole" minus "2nd Hole") in THM measurements.
e. Interpret the interval, part d. Can the geologists conclude that there is no evidence of a difference in the true THM means of all original holes and their twin holes drilled at the mine?
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Related Book For
Statistics For Business And Economics
ISBN: 9780321826237
12th Edition
Authors: James T. McClave, P. George Benson, Terry T Sincich
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