capstone

Data Validation

The process of verifying the accuracy and quality of data before use.

Data Analysis

A systematic process of extracting information from raw data to assist in interpretation.

Statistical Tools

Methods used to assess the accuracy and reliability of data.

Median

The middle value of a data set when arranged in order.

Mode

The value that occurs most frequently in a data set.

Standard Deviation

A measure of the dispersion or spread of data points around the mean.

Variance

The square of the standard deviation, measuring data spread.

True Value

A measurement derived from a certified reference material (CRM) indicating accuracy.

Relative Error

The difference between experimental value and true value, expressed as a percentage.

Dixon’s Q Test

A statistical method for identifying outliers in a data set.

T-test

A statistical test comparing the means of two independent groups.

Correlation Analysis

Analysis used to measure the strength and direction of a linear relationship between two variables.

Regression Analysis

Analysis used to model and analyze cause-and-effect relationships between variables.

Hypothesis

A statement formulated to prompt investigation and testing of data.

ANOVA

A statistical method used to compare means across multiple groups.

Data Visualization Technique

Methods employing graphics to represent relationships between variables.

Line Graph

A graph illustrating changes of a variable as a function of time.

Bar Graph

A graph consisting of rectangular blocks to represent frequency.

Histogram

A bar graph where blocks are placed next to each other to represent data distribution.

Scatterplot

A graph showing the relationship between two variables, represented by dots.

Tables

A method of organizing data in rows and columns for comparison or analysis.