If the underlying populations cannot be assumed to be normal, then by the central limit theorem, the sampling distribution of is approximately normal only if both sample sizes are sufficiently large—that is, when

a) n1 + n2 ≥ 30
b) n1 = 30 and n2 = 30
c) n1 + n2 = 30
d) n1 ≥ 30 and n2 ≥ 30

Harwood company uses a job-order costing system that applies overhead cost to jobs on the basis of machine-hours. the company's predetermined overhead rate of $2.50 per machine-hour was based on a cost formula that estimates $240,000 of total manufacturing overhead for an estimated activity level of 96,000 machine-hours. required: 1. assume that during the year the company works only 91,000 machine-hours and incurs the following costs in the manufacturing overhead and work in process accounts: compute the amount of overhead cost that would be applied to work in process for the year and make the entry in your t-accounts. 2a. compute the amount of underapplied or overapplied overhead for the year and show the balance in your manufacturing overhead t-account. 2b. prepare a journal entry to close the company's underapplied or overapplied overhead to cost of goods sold.

Which of the following would cause a shift to the right of the supply curve for gasoline? i. a large increase in the price of public transportation. ii. a large decrease in the price of automobiles. iii. a large reduction in the costs of producing gasoline

If a hotel has 100 rooms, and each room takes 25 minutes to clean, how many housekeepers working 8-hour shifts does the hotel need at 50 percent occupancy?