题目
Problem
A town council has published its plans for redeveloping the town centre and residents are being asked whether they approve or disapprove. A random sample of 250 responses has been selected from residents in the four main streets in the town: North, East, South and West Streets. The results are shown in the table.
| North Street | East Street | South Street | West Street | |
|---|---|---|---|---|
| Approve | 33 | 54 | 42 | 26 |
| Disapprove | 19 | 39 | 28 | 9 |
Test, at the 5% significance level, whether the opinions of the residents are independent of the streets on which they live.
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题目中文翻译
镇议会公布了重建镇中心的计划，并询问居民是赞成还是反对。从镇上四条主要街道 North、East、South 和 West Streets 的居民中随机抽取了 250 份回应。结果如下表所示。
| North Street | East Street | South Street | West Street | |
|---|---|---|---|---|
| 赞成 | 33 | 54 | 42 | 26 |
| 反对 | 19 | 39 | 28 | 9 |
在 5% 显著性水平下检验居民意见是否与他们居住的街道相互独立。