Titlebook: Business Analysis Using Regression; A Casebook Dean P. Foster,Robert A. Stine,Richard P. Waterman Textbook 1998 Springer Science+Business M

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Toleranz, Konflikte und Wirkungenat are needed for tests of means and confidence intervals (as discussed in the preceding volume of cases .). For example, regression analysis assumes that the observations are independent with equal variance.

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https://doi.org/10.1007/978-3-662-08531-8epends upon which other correlated variables also appear in the regression model. This class considers methods for understanding how the correlations among the explanatory variables affect the regression coefficients.

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Susanne Klingelhöfer,Ulrich Brüggemannnother. The simplest of these models are linear relationships. In models having a linear structure, the slope of the fitted line is crucial; it quantifies how variation in one variable (the predictor or covariate) translates into variation in the other (the response). The slope helps us interpret ho

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https://doi.org/10.1007/978-3-658-12299-7r the mean, these intervals rely on an estimate of variability known as the standard error. Although the interpretation of confidence intervals in regression is similar to that of the confidence intervals developed in ., the regression model itself is more complex and complicates the interpretation

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https://doi.org/10.1007/978-3-662-08531-8epends upon which other correlated variables also appear in the regression model. This class considers methods for understanding how the correlations among the explanatory variables affect the regression coefficients.

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Bisherige Arbeiten auf dem Gebiet,rences between two (today) or more groups (Class 7). When the categorical variable has two levels, the group membership is easily coded in a special numerical variable, known as a dummy variable. Since these dummy variables are numerical representations of qualitative, not quantitative, information,