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 $ 16,800 2,000 direct labor-hours
Machine-related $ 16,000 8,000 machine-hours
Machine setups $ 30,400 800 setups
Production orders $ 6,600 200 orders
Product testing $ 12,000 500 tests
Packaging $ 51,000 3,400 packages
General factory $ 55,600 2,000 direct labor-hours
Compute the activity rate for each activity cost pool.
Labor related-
Machine related-
Machine setups-
production orders-
product testing-
packaging-
general factory-

The survey of study habits and attitudes (ssha) is a psychological test that measures the motivation, attitude toward school, and study habits of students, scores range from 0 to 200. the mean score for u.s. college students is about 115, and the standard deviation is about 30. a teacher who suspects that older students have better attitudes toward school gives the ssha to 55 students who are at least 30 years of age. the mean score is 113.2. assume the population standard deviation is 30 for older students what is the margin of error for a 95% confidence interval for the population mean score for a. older students? b. compute the 95% confidence interval for the population mean score for older students. c. compute the 99% confidence interval for the population mean score for older students. d. compute the 88% confidence interval for the population mean score for older students.