Find the p-value for this test

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Reference no: EM131251724

Two machines are used for filling plastic bottles with a net volume of 16.0 ounces. The filling processes can be assumed to be normal, with standard deviations of σ₁ = 0.015 and σ₂ = 0.018. The quality engineering department suspects that both machines fill to the same net volume, whether or not this volume is 16.0 ounces. An experiment is performed by taking a random sample from the output of each machine.

(a) State the hypotheses that should be tested in this experiment.

(b) Test these hypotheses using α = 0.05. What are your conclusions?

(d) Find a 95 percent confidence interval on the difference in mean fill volume for the two machines.

Reference no: EM131251724

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