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
一个镇议会公布了重新开发镇中心的计划,并询问居民是赞成还是反对。现从该镇四条主要街道的居民中随机抽取了 250 份回应:North Street、East Street、South Street 和 West Street。结果如下表。
| 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,检验居民的意见是否与他们居住的街道相互独立。