Compare the four main layers of the atmosphere

There are four layers to the Earth's atmosphere. The Troposphere is where rain, snow, and storms occur. The Stratosphere is the ozone layer that absorbs the UV radiation. The Mesosphere is where most meteoroids burn up and leave a meteor trail. The Thermosphere is the furthest away from the Earth's surface and extends into space.

A) cost variance = -10,000, schedule variance = -7,000, cost performance index = 0.853, schedule performance index = 0.892.

B) The project is behind schedule and it is over budget.

C) Estimate at completion = 181712 . worse than planned.

D) It will take 13.45 to finish this project.

Explanation:

a) Cost variance = EV - AC ==> 58000 - 68000 = -10000

    Schedule variance = EV - PV ==> 58000 - 65000 = -7000

    CPI = EV / AC ==> 58000 / 68000 = 0.853

    SPI = EV / PV ==> 58000 / 65000 = 0.892

b) Since Scheduled Performance Index is less than 1, the project is behind schedule and if CPI is less than 1, the project is over budget .

c) EAC = BAC / CPI ==> 155000 / 0.853 = 181712

    Project is expected to exceed budget , therefore it is performing worse than planned.

d) Expected time to complete 12/.892 = 13.45