Scholarlink

In Chap. 2 , we examined various methods that can be used to select the individuals that will be in a sample. Another aspect of taking a sample is to decide how many observational units the sample should contain. What we would like to do is to take a sample large enough to allow rejection of a false null hypothesis. In other words, our sample should have sufficient statistical power. On the other hand, collecting data for large samples is costly. Therefore, we do not want to take a larger sample than is necessary to meet our needs.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Planning the Sample’s Size

  • 章节

  • 发表日期：

    2026年

查看全文
  • Robert Hirsch

摘要

In Chap. 2 , we examined various methods that can be used to select the individuals that will be in a sample. Another aspect of taking a sample is to decide how many observational units the sample should contain. What we would like to do is to take a sample large enough to allow rejection of a false null hypothesis. In other words, our sample should have sufficient statistical power. On the other hand, collecting data for large samples is costly. Therefore, we do not want to take a larger sample than is necessary to meet our needs.