3. Compare averages
Many situations involve testing either an average against a limit (is the true average value different from a limit value or not?), or an average against another average (are these two "lots" identical?).
Comparison of a mean to a limit under the assumption of normality
To compare a theoretical average to a limit set from a sample ...
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Compare averages
Compare variances (or standard deviations)
Bibliography
Statistique théorique et appliquée , 2nd edition, Dagnelie P, De Bœck Université, 2007
Introductory Statistics with R , Dalgaardp, Springer, 2008
Statistics, theory and applications , Lejeune M, Springer, 2004
Applied Statistices and Probability for Engineers , 4th edition, Montgomery D.C & Runger...
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