Concept explainers
The pH of an acid solution used to etch aluminum varies somewhat from batch to batch. In a sample of 50 batches the
a. Find the P-value for testing
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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- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill