Estimation
... Hypothesis testing with T • Tests hypotheses about relationship between a dichotomous nominal variable (gender, an either / or item) and an interval variable • Does the average score for one group differ from a second group? • Are Obama voters younger than Romney ...
... Hypothesis testing with T • Tests hypotheses about relationship between a dichotomous nominal variable (gender, an either / or item) and an interval variable • Does the average score for one group differ from a second group? • Are Obama voters younger than Romney ...
final-review
... use sample mean to estimate population mean confidence interval type I error and type II error null hypothesis (H0) and alternative hypothesis (H1) one-tail vs. two-tail t-statistics, critical value, p-value one-sample test two-sample test (independent) two-sample test (matched pair) ...
... use sample mean to estimate population mean confidence interval type I error and type II error null hypothesis (H0) and alternative hypothesis (H1) one-tail vs. two-tail t-statistics, critical value, p-value one-sample test two-sample test (independent) two-sample test (matched pair) ...
Population characteristics: Population mean
... confidence interval estimate the success rate of the method used to construct the interval. If we repeatedly sample from a population and calculate a confidence interval each time with the data available, then over the long run the proportion of the confidence intervals that actually contain the tru ...
... confidence interval estimate the success rate of the method used to construct the interval. If we repeatedly sample from a population and calculate a confidence interval each time with the data available, then over the long run the proportion of the confidence intervals that actually contain the tru ...
