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FOR UNIVARIATE DISTRIBUTIONS
Measures of Central Tendency and Variability
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achievement alternative hypothesis analysis of variance assumption average between-subjects calculated cell Chapter class interval column Compute confidence interval control group correlation coefficient covariate critical value cumulative frequency degrees of freedom dependent descriptive statistics deviation score differences between means distribution of means equal estimate Example Problem expected frequencies experimental group factor factorial ANOVA Figure frequency distribution grades hypothetical study independent variable inferences level of significance mean squares measure moral judgments negative normal distribution null and alternative null hypothesis number of subjects observed outcome population mean post hoc comparisons posttest predicted pretest probability provides random sample randomly assigned ranks raw score RBANOVA reject H0 reject the null relationship relative frequency represents sample data sample mean sampling distribution scatterplot score value self-concept slope SPANOVA specified standard deviation standard error statistical test step summary sums of squares treatment conditions treatment effect Type I error within-subjects zero