CSM Data Analysis & Decision Making 3

Question 1

In decision tree analysis, what does the term 'rollback' refer to?

Accepted Answer

Calculating node values from right to left to determine optimal choices

Answer

Rollback (or fold-back) is the process of computing expected values from terminal nodes back to the root to identify the optimal decision path.

Question 2

Which data quality dimension measures the degree to which data correctly represents the real-world entities or events it describes?

Accepted Answer

Accuracy

Answer

Accuracy (also called validity) measures how well data represents the true state of the real-world entities being modeled.

Question 3

A software manager is analyzing team velocity over 10 sprints. The median velocity is significantly lower than the mean. What does this suggest about the data distribution?

Accepted Answer

The distribution is positively skewed with high-velocity outliers

Answer

When the mean exceeds the median, a few high values are pulling the mean up, indicating a right (positive) skew.

Question 4

Which forecasting method is most appropriate when a software project's historical effort data shows both a trend and seasonal patterns?

Accepted Answer

Holt-Winters triple exponential smoothing

Answer

Holt-Winters triple exponential smoothing accounts for level, trend, and seasonal components simultaneously.

Question 5

When a software manager uses a RACI matrix to support a decision-making process, what does the 'C' stand for, and what is that role's primary function?

Accepted Answer

Consulted — provides input before the decision is made

Answer

In RACI, Consulted means the person is asked for input before decisions or actions are taken, enabling two-way communication.

(CSM) Certified Software Manager Practice Test

(CSM) Certified Software Manager Practice Test

CSM Data Analysis & Decision Making 3