Basic analysis Process the data validation editing coding data entry

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Presentation transcript:

Basic analysis Process the data validation editing coding data entry cleaning

Tabulation frequency tables cross tabulations graphic representation base for percentages cross tabulations graphic representation descriptive statistics mean, median, mode variance, standard deviation, range percentage, frequency

Statistical Testing t-test of a single mean (pg. 580) t-test of a proportion (pg. 585) t-test of two means (pg. 584) t-test of two proportions (pg. 587)

steps in hypothesis testing set up a hypothesis determine what would happen if the hypothesis was true run an experiment or study calculate a statistic determine the probability of that statistic if the hypothesis was true decide whether or not to reject the hypothesis

issues in hypothesis testing type 1 (alpha) or type 2 (beta) error one or two tailed tests accept or fail to reject independent or related samples degrees of freedom p-values and statistical tests

Other statistical tests single sample chi-square test two sample chi-square test Kolmogorov-Smirnov test

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