8-9. The yield of a chemical process is being studied. From previous experience yield is
Chapter 8, Problem 8-9(choose chapter or problem)
8-9. The yield of a chemical process is being studied. From previous experience yield is known to be normally distributed and 3. The past five days of plant operation have resulted in the following percent yields: 91.6, 88.75, 90.8, 89.95, and 91.3. Find a 95% two-sided confidence interval on the true mean yield.
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