Two tests were provided for testing the hypothesis of a mean value against a standard, the Z
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Two tests were provided for testing the hypothesis of a mean value against a standard, the Z test of Equation 9.6 and the t test of Equation 9.12. What are the differences of the two tests in terms of the purpose, data analysis requirements, underlying assumptions, and the critical value? Under what circumstances can the Z test be used as an alternative to the t test?
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Related Book For 
Probability Statistics And Reliability For Engineers And Scientists
ISBN: 9781439809518
3rd Edition
Authors: Bilal M. Ayyub, Richard H. McCuen
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