Mathematics, 07.12.2019 01:31 aseel667789
The yield of a chemical process is being studied. from previous experience, yield is known to be normally distributed and the past five days of plant operation have resulted in the following yields 91.6, 88.75, 90.8, 89.62, and 91.2. find a 95% two-sided confidence interval on the true mean yield. (a) calculate the sample mean. round your answer to 2 decimal places.
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