For an activity in a CPM analysis the Early Start time is 15 and the Late Start time is 20. Which of the following statements is true? a. The duration of this task is zero.
b. The slack for this activity is 20.
c. The activity's late start must happen before its early start.
d. The activity is not on the critical path.
e. The duration of this task is 20.

Agood for which demand increases as income rises is and a good for which demand increases as income falls is

Ajustification for job training programs is that they improve worker productivity. suppose that you are asked to evaluate whether more job training makes workers more productive. however, rather than having data on individual workers, you have access to data on manufacturing firms in ohio. in particu- lar, for each firm, you have information on hours of job training per worker (training) and number of nondefective items produced per worker hour (output). (i) carefully state the ceteris paribus thought experiment underlying this policy question. (ii) does it seem likely that a firm’s decision to train its workers will be independent of worker characteristics? what are some of those measurable and unmeasurable worker characteristics? (iii) name a factor other than worker characteristics that can affect worker productivity. (iv) if you find a positive correlation between output and training, would you have convincingly established that job training makes workers more productive? explain.

The textbook defines ethics as “the principles of conduct governing an individual or a group,” and specifically as the standards one uses to decide what their conduct should be. to what extent do you believe that what happened at bp (british petrolium) is as much a breakdown in the company’s ethical systems as it is in its safety systems, and how would you defend your conclusion?