Eight randomly selected batches of a chemical were tested for impurity concentration. The percentage impurity levels found
Question:
3.2 4.3 2.1 2.8 3.2 3.6 4.0 3.8
a. Find the most efficient estimates of the population mean and variance.
b. Estimate the proportion of batches with impurity levels greater than 3.75%.
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a The minimum variance unbiased ...View the full answer
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Related Book For 
Statistics For Business And Economics
ISBN: 9780132745659
8th Edition
Authors: Paul Newbold, William Carlson, Betty Thorne
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