Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
4 Cards in this Set
- Front
- Back
chi-square test for goodness of fit
|
uses sample data to test hypotheses about the shape or proportions of a population distribution; the test determines how well the obtained sample proportions fit the population proportions specified by the null hypothesis
|
|
observed frequency
|
the number of individuals from the sample who are classified in a particular category; each individual is counted in one and only one category
|
|
expected frequency
|
the frequency value that is predicted from the null hypothesis and the sample size (n); the expected frequencies define an ideal, hypothetical sample distribution that would be obtained if the sample proportions were in perfect agreement with the proportions specified in the null hypothesis
|
|
chi-square test for independence
|
uses the frequency data from a sample to evaluate the relationship between two variables in the population
|