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Problem 2. A measurement operator claims that his measurements are quite repeatable. To verify
this, we ask him to measure one part 8 times and record the measurement. If his claim is true the
variance of measurements should not be more than 0.01 . a) Define a hypothesis test on variance
and test it using test statistic, and confidence interval methods. b) Test the same hypothesis for
standard deviation (only one method would suffice).

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Problem 2 A measurement operator claims that his measuremen.pdf

  • 1. Problem 2. A measurement operator claims that his measurements are quite repeatable. To verify this, we ask him to measure one part 8 times and record the measurement. If his claim is true the variance of measurements should not be more than 0.01 . a) Define a hypothesis test on variance and test it using test statistic, and confidence interval methods. b) Test the same hypothesis for standard deviation (only one method would suffice).