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Organizing and Graphing Data
Graphing Frequency Distribution
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alternative hypothesis box plot central tendency Chapter class interval column concepts confidence interval consider correlation coefficient covariate critical value defined degrees of freedom determine deviation score difference discussed distribution of scores equal estimate example Exercise F ratio final examination scores found in Table frequency distribution graph hypothesis testing hypothesized value independent variable indicates inferential statistics level of significance linear mathematical mean squares measures of central median multiple null hypothesis null hypothesis H0 number of observations one-tailed test parameter Pearson percent percentile rank PM PM population mean possible outcomes predictor variables procedures proportion random sample raw score region of rejection regression reject the null rejecting H0 relationship researcher sample mean sample statistic sampling distribution SAT scores scattergram score formula SPSS standard deviation standard error standard scores sum of squares Suppose tails test statistic testing the null total number two-tailed test Type I error underlying distribution variance variation