The process of determining a t-value for a certain confidence level requires utilization of a t-distribution table. This method is predominantly employed in the execution of hypothesis testing and the formation of confidence intervals, particularly when dealing with a small sample size or when the population standard deviation is not known. The t-value is contingent on both the size of the sample and the chosen confidence level.
| Topic | Problem | Solution |
|---|---|---|
| None |
In a population where the mean is |
Step 1: Identify the degrees of freedom (df). The degrees of freedom is given by |