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Introduction and Descriptive Statistics
The Folly of Data Mining
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advertising analysis of variance ANOVA ANOVA table approximately assume assumption average binomial box plot Chapter chart chi-square chi-square distribution coefficient coefficient of determination column confidence interval correlation critical point data points data set decision define degrees of freedom denoted determine dollars equal estimate event example expected value Explain factor firm forecast frequency function given histogram hypothesis test independent variables level of significance measure median method MINITAB multicollinearity normal distribution normal random variable null hypothesis observations obtained one-tailed payoff percentage population mean population proportion posterior prediction probability distribution problem quartile random sample randomly chosen regression analysis regression model reject the null relationship residuals sample mean sample space selected shown in Figure standard deviation sum of squares Suppose test statistic theorem tion two-tailed test type I error versus wants to test zero