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In a chemical process the amount of a certain type of impurity in the output...

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In a chemical process the amount of a certain type of impurity in the output is difficult to control is thus a random variable Speculation is that the population mean amount of the impurity is 0 20 grams per gram of output It is known that the standard deviation is 0 1 grams per gram of output An experiment is conducted to gain more insight regarding the speculation that the population mean is 0 20 a The process was run on a lab scale 50 times and the sample average x turned out to be 0 23 grams per gram Perform analysis and comment on the speculation on the population mean b What if the process was run 30 times and the sample average x turns out to be 0 19 grams per gram

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