We Are Interested in Testing Whether the Variance of a Population

question 16

Multiple Choice

We are interested in testing whether the variance of a population is significantly less than 1.44. The null hypothesis for this test is

• A)H_o:² < 1.44
• B)H_o: s² \(\ge\) 1.44
• C)H_o:\(\le\) 1.20
• D)H_o:² \(\ge\) 1.44

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Definitions:

Dummy Activities

Dummy activities are artificial tasks used in project scheduling (e.g., in a PERT or CPM diagram) to establish proper relationships among actual tasks, indicating dependencies without consuming resources or time.

Permanent Project Organization

An organizational structure designed to manage projects on a long-term basis, with dedicated teams and resources.

Matrix Organization

A flexible organizational structure where employees report to multiple managers, typically project manager and functional manager.

Gantt Charts

are visual representation tools used in project management to outline the schedule of tasks or activities against a timeline, highlighting dependencies and progress.