SoftMax, the game producer, plans to develop the next sequel of the successful MMORPG (Massive Multiplayer Online Role-Playing Game) series Genesis. The critical steps for developing the game are provided in the following table. Also listed are the planned durations and the predecessor(s) for each step Activity Description (months) Duration Immediate Predecessor(s)
A Main story line design 4
B Main program coding 8 A
C Character design and attribute configurations 3 A
D Artwork design 2 A
E 3D graphics design 4 C, D
F User interface design and graphics integration 5 B, E
G Alpha testing and debugging 2 F
H Public testing and final adjustment 1 G
I Media exposure and advertisement 6 E
J Major launch preparation 1 H, I
a. Draw an activity-on-node (AON) network diagram for the project.
b. Compute the earliest start (ES), earliest finish (EF), latest start (LS), and latest finish (LF), and slack for each activity. Display all values in a table format.
c. Determine the critical path(s) for the project. What is the project duration (in months)?
d. Which activities are non-critical and how much slack does each non-critical activity have?

Every 10 years, the federal government sponsors a national survey of health and health practices (nhanes). one question in the survey asks participants to rate their overall health using a 5-point rating scale. what is the scale of measurement used for this question? ratio ordinal interval nominal

Exercise 18-15 sheffield appliance center is an experienced home appliance dealer. sheffield appliance center also offers a number of services for the home appliances that it sells. assume that sheffield appliance center sells ovens on a standalone basis. sheffield appliance center also sells installation services and maintenance services for ovens. however, sheffield appliance center does not offer installation or maintenance services to customers who buy ovens from other vendors. pricing for ovens is as follows. oven only $790 oven with installation service 850 oven with maintenance services 970 oven with installation and maintenance services 990 in each instance in which maintenance services are provided, the maintenance service is separately priced within the arrangement at $180. additionally, the incremental amount charged by sheffield appliance center for installation approximates the amount charged by independent third parties. ovens are sold subject to a general right of return. if a customer purchases an oven with installation and/or maintenance services, in the event sheffield appliance center does not complete the service satisfactorily, the customer is only entitled to a refund of the portion of the fee that exceeds $790. assume that a customer purchases an oven with both installation and maintenance services for $990. (b) indicate the amount of revenue that should be allocated to the oven, the installation, and to the maintenance contract.

According to this excerpt, a key part of our national security strategy is