Free SAS Statistical Analysis & Modeling Questions and Answers

Question 1

What is the purpose of statistical analysis in data science?

Accepted Answer

To make decisions based on data-driven insights

Answer

Statistical analysis helps in understanding the underlying patterns of the data and making informed decisions based on data insights.

Question 2

What does a p-value represent in hypothesis testing?

Accepted Answer

The likelihood of obtaining the observed result if the null hypothesis is true

Answer

A p-value helps to determine the statistical significance of the results in hypothesis testing, measuring the likelihood that the observed result is due to chance.

Question 3

What is regression analysis used for?

Accepted Answer

To make predictions based on a linear relationship

Answer

Regression analysis is used to understand relationships between variables and predict one variable based on another.

Question 4

What does a confidence interval represent in statistical analysis?

Accepted Answer

The range within which the population parameter is likely to fall

Answer

A confidence interval gives a range of values within which the true population parameter is likely to fall, with a certain level of confidence.

Question 5

Which statistical technique is used for predicting a continuous outcome based on one or more predictor variables?

Accepted Answer

Linear regression

Answer

Linear regression is a commonly used statistical method to predict continuous outcomes by analyzing relationships between dependent and independent variables.

SAS - Certified Statistical Analysis System Specialist Practice Test

SAS - Certified Statistical Analysis System Specialist Practice Test

Free SAS Statistical Analysis & Modeling Questions and Answers