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A manufacturer of plastic pipes uses a scale with an
Chapter , Problem 7.22(choose chapter or problem)
A manufacturer of plastic pipes uses a scale with an accuracy of 1.0% of its range of 10 lb to measure the mass of each pipe the company produces in order to calculate the uncertainty in mass of the pipes. In one batch of 10 parts, the measurements are as follows: 2.90,2.95,2.96,2.92,2.95,2.94,2.96,2.97,2.98,2.91 (lb) Calculate (a) the mean mass of the sample. (b) the standard deviation of the sample and the standard deviation of the mean. (c) the total uncertainty of the mass of a single product at a 95% confidence level. (d) the total uncertainty of the average mass of the product at a 95% confidence level.
Questions & Answers
QUESTION:
A manufacturer of plastic pipes uses a scale with an accuracy of 1.0% of its range of 10 lb to measure the mass of each pipe the company produces in order to calculate the uncertainty in mass of the pipes. In one batch of 10 parts, the measurements are as follows: 2.90,2.95,2.96,2.92,2.95,2.94,2.96,2.97,2.98,2.91 (lb) Calculate (a) the mean mass of the sample. (b) the standard deviation of the sample and the standard deviation of the mean. (c) the total uncertainty of the mass of a single product at a 95% confidence level. (d) the total uncertainty of the average mass of the product at a 95% confidence level.
ANSWER:Step 1 of 8
(a)
The measurement of the mass of the pipe in is,