anina2019-03-31 20:34:14
老师你好,原版书662页第七题,为什么答案说Based on the samples, it is reasonable to assume that the population variances are equal. 为什么可以合理的假设这两个总体的方差是相等的?
回答(1)
Peter F2019-04-01 13:57:04
同学,你好:Based on the samples, it is reasonable to assume that the population variances are equal. 这里 Based on the samples 是说从表格中可以发现 Analyst A = 0.10 而 Analyst B = 0.09,0.10 和 0.09 很接近,所以推测出总体方差会相等。
- 评论(0)
- 追问(0)


评论
0/1000
追答
0/1000
+上传图片