When it is operating correctly, a machine for manufacturing tennis balls produces balls with a mean weight
Question:
57.3, 57.4, 57.2, 57.5, 57.4, 57.1, 57.3, 57.0
a. Using a calculator or software, find the test statistic and P-value for a test of whether the process is in control against the alternative that the true mean of the process now differs from 57.6.
b. For a significance level of 0.05, explain what you would conclude. Express your conclusion so it would be understood by someone who never studied statistics.
c. If your decision in part b is in error, what type of error have you made?
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a Software indicates a test statistic of 55 and a Pvalue of 0001 b For a signi...View the full answer
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Related Book For 
Statistics The Art And Science Of Learning From Data
ISBN: 9780321755940
3rd Edition
Authors: Alan Agresti, Christine A. Franklin
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