Expected Counts and the Chi-square Statistic Worksheet with Answer Key

What's on the worksheet

1. Find the expected count E in cells
   one variable, n = 360, claimed share 0.15one variable, n = 75, claimed share 0.22two-way table, row total 84, column total 55, grand total 220two-way table, row total 45, column total 38, grand total 120one variable with 7 categories
2. A craft supplier says its mosaic tile mix is 35% blue, 30% white, 25% green and 10% gold, by number of tiles.
3. Each entry of this chi-square table is the value with the given area to its right.
   \chi^2 = 3.1, df = 1\chi^2 = 6.8, df = 4\chi^2 = 12.4, df = 6\chi^2 = 19.0, df = 8\chi^2 = 1.2, df = 3
4. The morning after a fresh snowfall, a naturalist walks set routes through a nature preserve and records 150 sets of animal tracks by animal and by…
5. In past years a charity's book-donation bins have received 30% fiction, 25% children's books, 20% nonfiction, 15% cookbooks and 10% other books.