A new operator was recently assigned to a crew of workers who perform a certain job. From the records of the number of units of work completed by each worker each day last month, a sample of size 5 was randomly selected for each of the two experienced workers and the new worker. At the 0.05 level of significance, does the evidence provide sufficient reason to reject the claim that there is no difference in the amount of work done by the three workers?

a. Solve using the p-value approach.
b. Solve using the classical approach.

Workers New Units of work (replicates 10 13 10 12 10 12 13 13