Free Practice Mock Questions Set 36-40 (Quiz # 8) for CompTIA DA0-001 Exam, according to official CompTIA Data+ Certification Exam syllabus topic # 9

Analyze the values of X shown below

(2,2,5,6,7)

What is the modal value?

Answer : D

You are measuring how much a child has grown over the past year and would like to express that using a percentage.

What calculation is most appropriate?

Analyzing a data point, you find that the point is 1 standard deviation above the mean.

What is the z-score for this data point?

Answer : C

You would like to know whether the mean height of a group of children is statistically significantly different from that of another group.

What statistical test would be most appropriate?

Answer : B

What output from a statistical test is used when performing hypothesis testing?