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CHAPTER PAGE I The Field of Business Statistics
The Collection of Statistical Data
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adjusted American Statistical Association analysis of variance annual approximate arithmetic mean assumed average deviation base calculated cent centered chapter chart class intervals class limits coefficient of correlation column compared computed convenient correction correlation ratio covariation cross products cumulative curvilinear cycle described difference dollars error of estimate expressed fitting formula frequency distribution geometric mean given grouped data Hence illustrated in Example index numbers indicated involved Journal linear logarithms mathematical measure median method month monthly moving average multiple correlation normal equations noted number of items obtained origin parabola Pearsonian percentage percentile plotted probability problem procedure production quantity quartile ratio readily reference regression equation relationship represent result salesmen sample scale seasonal index seasonal relatives significant skewness standard deviation standard error straight-line trend tabulation test scores tion trend items types United usual values variability wages weights workers