Exercise 4-6A Allocating overhead costs among products Willey Company makes three products in its factory: plastic cups, plastic tablecloths, and plastic bottles. The expected overhead costs for the next fiscal year include the following. Willey uses machine hours as the cost driver to allocate overhead costs. Budgeted machine hours for the products are as follows. Required a. Allocate the budgeted overhead costs to the products. b. Provide a possible explanation as to why Willey chose machine hours, instead of labor hours, as the allocation base