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PART ONE DESCRIBING DATA FOR A SINGLE VARIABLE
Tables and Graphs to Display Data
Central Tendency and Variability
19 other sections not shown
aggressive alternative hypothesis analysis assumption behavior binomial Chapter chi-square test coin flips column comparisons condition means confidence interval correct predictions correlation coefficient critical value degrees of freedom dependent deviation scores difference between means effect size equal estimate example expected frequencies F-ratio factor fail to reject Figure frequency distribution H0 is true independent samples independent variable inference interaction involves linear main effect midterm multiplication nondirectional normal distribution NPSTAT null hypothesis observed outcome pairs parametric percent population mean possible probability of obtaining problem procedure produce random assignment random sampling randomization test randomly ratio raw score region of rejection regression line reject H0 reject the null represent researcher result sample means sampling distribution score values set of scores significant standard deviation standard error standard score statistical test sum of squares t-test Table tion total number treatment trials Type I error variance variation z-score zero