Which of the following represents cross sectional data?

1. Indirect manufacturing labor costs for the past 5 years
2. Personnel costs of a month at 10 different organizations
3. Number of machine hours used for the past 10 years
4. Maintenance cost of machine in a plant for the past 3 years.

Hartleys meat pies is considering replacing its existing delivery van with a new one. The new van can offer considerable savings in operating costs. Information about the existing can and the new van follow:

Existing van new van

Original costs 56000 95000

Annual operating costs 22500 15000

Accumulated depreciation 33000 -

Current salvage value of existing van 27500 -

Remaining life 10 years 10 years

Salvage value in 10 years 0 0

Annual depreciation 2300 9500

If Hartleys meat pies replaces the existing van with a new one, over the next 10 years operating income will_

1. Increase by 75000
2. Increase by 95000
3. Decrease by 75000
4. Decrease by 95000