AKT AKT Data Interpretation and Analysis 2

Question 1

Which analysis method is used to determine if there is a significant difference between the means of three or more groups?

Accepted Answer

ANOVA

Answer

Analysis of Variance (ANOVA) tests whether the means of three or more groups are statistically different from each other.

Question 2

In a box plot, the line inside the box represents the:

Accepted Answer

Median

Answer

The line inside the box of a box plot always represents the median (50th percentile) of the dataset.

Question 3

What does a scatter plot primarily show?

Accepted Answer

Relationship between two continuous variables

Answer

A scatter plot displays individual data points plotted on two axes to visualize the relationship or correlation between two continuous variables.

Question 4

Which data analysis technique would you use to predict a continuous outcome from one or more predictor variables?

Accepted Answer

Linear regression

Answer

Linear regression models the linear relationship between predictor variables and a continuous outcome variable to make predictions.

Question 5

A dataset has a mean of 50 and a standard deviation of 5. What percentage of data falls within one standard deviation of the mean in a normal distribution?

Accepted Answer

68%

Answer

In a normal distribution, approximately 68% of data falls within one standard deviation (±1 SD) of the mean.

AKT - Applied Knowledge Test Practice Test

AKT - Applied Knowledge Test Practice Test

AKT AKT Data Interpretation and Analysis 2