Rustafson Corporation is a diversified manufacturer of consumer goods. The company's activity-based costing system has the following seven activity cost pools:

Activity Cost Pool Estimated Overhead Cost Expected Activity
Labor-related $31,200 5,000 direct labor-hours
Machine-related $1,250 5,000 machine-hours
Machine setups $36,000 1,200 setups
Production orders $18,000 500 orders
Product testing $22,000 1,100 tests
Packaging $42,900 3,900 packages
General factory $56,000 5,000 direct labor-hours

Required:
a. Compute the activity rate for each activity cost pool.
b. Compute the company's predetermined overhead rate, assuming that the company uses a single plantwide predetermined overhead rate based on direct labor-hours.