## Confidence Interval for Population Mean

A confidence interval is constructed from a sample data is a range of values that is likely to include the population parameter with a certain probability.

The objective of a confidence interval is to provide location and precision of population parameters.

## Combining data Vertically in SAS (6 Methods)

Combining datasets vertically involves stacking one or more datasets. Before combining datasets It’s important to understand the descriptor portion or structure and contents of your input data sets.

## Using Index in SAS to speed up programs

An index in SAS is used to sort your data without physically sorting it logically. If you are sorting and then re-sorting…

## Central Limit Theorem

Central Limit Theorem states that the sample means will be approximately normally distributed for large sample size regardless of the distribution from which the sample is taken.

## Descriptive Statistics in SAS with Examples

Descriptive Statistics is about finding “what has happened” by summarizing the data using statistical methods and analyzing the past data using queries.

## How do you convert characters to numeric or numeric to characters in SAS?

Variable conversions in SAS refer to converting numeric to character variables or character variables to numeric variables. PUT() function is used to…

## Generating sum of rolling data using the Lag function

Rolling Data also known as Moving average is a time-based calculation to get an insight into trends for a defined period of time.
If the time frame for the moving average is 12 months, the data that is 13 months old be dropped and the new month’s data will be added.

## Using PROC MEANS for detailed analysis of data

PROC MEANS in SAS is used to evaluate quantitative data and to create a summary report for analysis. Using PROC MEANS procedure, you can compute statistics like finding mean, standard deviation, the minimum and maximum values and a lot more statistical calculations.

## Exploring the SET Statement in SAS

A majority of DATA steps use the SET statement. The primary function of the SET statement in SAS is to read observations…