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2. (Problem 4.9 from the Textbook, 10 pts) Ferric chloride is used as a flux in some types of extraction metallurgy proc
Posted: Sun Oct 03, 2021 12:47 pm
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- 2 Problem 4 9 From The Textbook 10 Pts Ferric Chloride Is Used As A Flux In Some Types Of Extraction Metallurgy Proc 1 (30.81 KiB) Viewed 116 times
2. (Problem 4.9 from the Textbook, 10 pts) Ferric chloride is used as a flux in some types of extraction metallurgy processes. This material is shipped in containers, and the container weight varies. It is important to obtain an accurate estimate of mean container weight. Suppose that from long experience a reliable value for the standard deviation of flux container weight is determined to be 4 lb. How large a sample would be required to construct a 95% two-sided confidence interval on the mean that has a total width of 1 lb?