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WHAT IS STATISTICS?
H A P ter 2 MEASUREMENT
FROM A SINGLE VARIABLE
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accompanying table annual income Appendix Table approximately average binomial experiment box plot calculate Chapter chi-square test class interval coefficient of determination Compute confidence interval Construct a frequency data in Exercise data of Table Database determine difference example expected cell counts formula frequency distribution frequency histogram frequency polygon grouped data independent variable inferential statistics interpretation level of technology males mean and standard measure of association median midpoint normal curve normally distributed null hypothesis obtain ordinal outcome percentage percentile population mean prediction equation probability distribution procedure proportion qualitative quantitative variable random sample ranks ratio scale Refer to Exercise Reject H0 reject the null rejection region research hypothesis sample data sample mean sampling distribution selected set of scores social researchers social sciences specified standard deviation statistical test survey test of independence test statistic third variable tion total number trial type I error variance violent crime rates z-score