The pH of an acid solution used to etch aluminum varies somewhat from batch to batch In a sample of 50 batches the mean pH was 2 6, with a standard deviation of 0 3 Let represent the mean pH for batches of this solution a Find the P value for testing H 0 2 5 versus H 1 2 5 b Either the mean pH is g...

a To find the Pvalue for this hypothesis test we need to calculate the probability of observing ...

The pH of an acid solution used to etch aluminum varies somewhat from batch to batch. In

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The pH of an acid solution used to etch aluminum varies somewhat from batch to batch. In a sample of 50 batches the mean pH was 2.6, with a standard deviation of 0.3. Let μ represent the mean pH for batches of this solution.

a. Find the P-value for testing H₀ :μ ≤ 2.5 versus H₁ :μ > 2.5.

b. Either the mean pH is greater than 2.5 mm, or the sample is in the most extreme % of its distribution.

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Statistics For Engineers And Scientists

ISBN: 9780073401331

4th Edition

Authors: William Navidi

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Question Posted: Nov 09, 2018 10:09 AM

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