A Statistics Instructor Wishes to Know the Average Age (In

question 27

Multiple Choice

A Statistics instructor wishes to know the average age (in month) of his 200 students.He is too lazy to sample all 200 students so he decides to choose 20 students at random from the class and ask them for their age.He orders all students alphabetically by their first name.He then selects every 10th person on the list to be in his sample.This sampling method is called a

• A)Cluster Sample.
• B)Simple Random Sample.
• C)Voluntary Sample.
• D)Stratified Random Sample.
• E)Systematic Random Sample.

---

Definitions:

Crashing

A project management technique used to shorten the schedule duration for the least incremental cost by adding resources to critical path tasks.

Crash Cost

The additional cost incurred to reduce the duration of a project activity or the entire project.

Normal Duration

The typical time it takes to complete an activity or task under normal circumstances, without any delays or accelerations.

Crash Cost

The additional cost associated with reducing the time (crashing) required to complete a project or a phase of a project beyond normal expectations.