Re: Could someone explain to me the "One Sample Mean", "Power for Testing Mean " Animation Script?
Aug 22, 2016 7:36 AM(1712 views)
1. The green vertical line represents the sample average estimated from the data. "True" mean is initially set to this value.
3. The distribution of the test statistic (i.e., one-sample t test) under the 'True" mean has a non-central t-distribution. When you move the "True" mean close to or away from the hypothesized mean, the probablity density function changes. The following figure shows the non-central t-distribution with different values of non-central parameter μ, and ν degree of freedom Noncentral t-distribution - Wikipedia, the free encyclopedia
4. The red represents t-distribution.
5. The blue represents non-central t-distribution.