b:head_first_statistics:estimating_populations_and_samples
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revision | |||
| b:head_first_statistics:estimating_populations_and_samples [2024/11/11 08:17] – [Recap] hkimscil | b:head_first_statistics:estimating_populations_and_samples [2024/11/11 08:23] (current) – [Recap] hkimscil | ||
|---|---|---|---|
| Line 627: | Line 627: | ||
| \begin{eqnarray*} | \begin{eqnarray*} | ||
| Ps & \sim & N(p, \frac{pq}{n}) \\ | Ps & \sim & N(p, \frac{pq}{n}) \\ | ||
| + | \text{hence, | ||
| + | \text{standard deviation of} \\ | ||
| + | \text{sample proportions} & = & \sqrt{\frac{pq}{n}} | ||
| \end{eqnarray*} | \end{eqnarray*} | ||
| Distribution of **Sample** <fc # | Distribution of **Sample** <fc # | ||
| Line 632: | Line 635: | ||
| \begin{eqnarray*} | \begin{eqnarray*} | ||
| \overline{X} & \sim & N(\mu, | \overline{X} & \sim & N(\mu, | ||
| + | \text{hence, | ||
| + | \text{standard deviation of} \\ | ||
| + | \text{sample means} & = & \sqrt{\frac{\sigma^2}{n}} \\ | ||
| + | & = & \frac{\sigma}{\sqrt{n}} | ||
| \end{eqnarray*} | \end{eqnarray*} | ||
b/head_first_statistics/estimating_populations_and_samples.1731280667.txt.gz · Last modified: 2024/11/11 08:17 by hkimscil