In the original research, it took 25 minutes, on average, for an employee to return to a task after being interrupted. For each of five employees, the time until work on the initial task was resumed...

In the original research, it took 25 minutes, on average, for an employee to return to a task after being interrupted.

For each of five employees, the time until work on the initial task was resumed was 20, 19, 27, 24, and 18 minutes.

What distribution would be used in this situation? Explain your answer.

Determine the appropriate mean and standard deviation (or standard error) for this distribution.

Show all your work; use symbolic notation and formulas where appropriate.

Calculate the t statistic.