Sociology Ethnic Groups
After a large fund drive to help the Boston City Library, the following information was obtained from a random sample of contributors to the library fund. Using a 1% level of significance, test the claim that the amount contributed to the library fund is independent of ethnic group.
| Ethnic Group | Number of People Making Contribution | Row Total | ||||
| $1–50 | $51–100 | $101–150 | $151–200 | Over $200 | ||
| A | 83 | 62 | 53 | 35 | 18 | 251 |
| B | 94 | 77 | 48 | 25 | 20 | 264 |
| C | 78 | 65 | 51 | 40 | 32 | 266 |
| D | 105 | 89 | 63 | 54 | 29 | 340 |
| Column Total | 360 | 293 | 215 | 154 | ||
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