AP Statistics Chapter 11 Flashcards
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| 9413544593 | one way table | displays the distribution of a categorical variable for the individuals in a sample | 0 | |
| 9413544594 | chi-square goodness of fit test | determines whether a categorical variable has a specified distribution expressed as the proportion of individuals falling into each possible category | 1 | |
| 9413544603 | chi-square statistic |  | 2 | |
| 9413544595 | expected count | for any variable category is obtained by multiplying the proportion of the distribution for each category times the sample size | 3 | |
| 9413544596 | observed count | In each category with the counts that would be expected if H0 were true. | 4 | |
| 9413544597 | chi-square distibution | a family of distributions that take only positive values and are skewed to the right; specified by its degrees of freedom | 5 | |
| 9413544598 | degrees of freedom | one less than the number of categories | 6 | |
| 9413544599 | chi-square test for homogeneity | H0: there is no difference in the distribution of a categorical variable for several populations or treatments | 7 | |
| 9413544600 | chi-square test for association/independence | H0: there is/no association between two categorical variables in the population of interest | 8 | |
| 9413544601 | r x c table | A two-way table with r rows and c columns. | 9 | |
| 9413544602 | components | show which terms contribute most to the chi-square statistic | 10 |