Please provide numbers separated by commas to calculate the standard deviation, variance, mean, sum, and margin of error.
Standard Deviation, σ:
4.8989794855664
Variance, σ²:
24
Mean, μ:
18
Sum, Σx:
144
The sampling mean most likely follows a normal distribution. In this case, the standard error of the mean (SEM) can be calculated using the following equation:
\[\sigma_x = \frac{\sigma}{\sqrt{N}} = 1.7320508075689\]
Based on the SEM, the following are the margins of error (or confidence intervals) at different confidence levels. Depending on the field of study, a confidence level of 95% (or statistical significance level) is used.
| Confidence Level | Margin of Error | Error Bar |
|---|
| Value | Frequency |
|---|