Engineering Statistics An engineering student measures the length of two quartz
ID: 3175480 • Letter: E
Question
Engineering Statistics An engineering student measures the length of two quartz tubes used in high temperature flow furnaces to be 350 mm and 342 mm. They calculate the total length of the two tubes, when joined together in a larger process, to be 692 mm. Comment on their answer. Engineering Statistics An engineering student measures the length of two quartz tubes used in high temperature flow furnaces to be 350 mm and 342 mm. They calculate the total length of the two tubes, when joined together in a larger process, to be 692 mm. Comment on their answer. An engineering student measures the length of two quartz tubes used in high temperature flow furnaces to be 350 mm and 342 mm. They calculate the total length of the two tubes, when joined together in a larger process, to be 692 mm. Comment on their answer.Explanation / Answer
Answer:
Lengths of the two tubes are given as 350 mm and 342 mm and when we calculate the total length when joined together, it would be 350 + 342 = 692 mm. This would be a prompt and manual judgement for everyone. But we need to think in the sense of statistical thinking. The given value 692 is a point estimate for the given process. But for the larger process, we do not use the point estimate for describing the process. There would be a possibility of getting various types of errors during the larger process and it would reduce the accuracy of the process. So, for the long process, researchers use the confidence intervals for describing the population parameters under study.
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