statistical-analysis

Apply descriptive statistics, trend analysis, outlier detection, and hypothesis testing to datasets.

Updated Feb 6, 2026
One-click install
npx skills add https://github.com/lohasle/knowledge-work-plugins --skill statistical-analysis-lohasle
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: statistical-analysis
Source: https://github.com/lohasle/knowledge-work-plugins/tree/main/data/skills/statistical-analysis
Command: npx skills add https://github.com/lohasle/knowledge-work-plugins --skill statistical-analysis-lohasle

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps you understand and interpret data by applying statistical methods, enabling you to make more informed decisions based on evidence rather than intuition.

Core Features & Use Cases

  • Descriptive Statistics: Summarize data using measures of central tendency, spread, and distribution shape.
  • Trend Analysis: Identify patterns and forecast future values in time-series data.
  • Outlier Detection: Find and handle unusual data points that may skew analysis.
  • Hypothesis Testing: Determine if observed differences are statistically significant.
  • Use Case: Analyze customer survey responses to understand satisfaction levels, identify trends in user engagement over time, and test if a new feature significantly impacted retention.

Quick Start

Analyze the attached dataset 'customer_data.csv' to calculate descriptive statistics for the 'age' column.

Frequently Asked Questions about statistical-analysis

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I calculate descriptive statistics for a dataset to understand data distribution?

To calculate descriptive statistics, you apply measures of central tendency, spread, and distribution shape to summarize your dataset. This quantifies data distributions, enabling you to interpret central values and variability for informed decision-making.

How does hypothesis testing work for determining statistical significance in data analysis?

Hypothesis testing determines statistical significance by evaluating if observed differences in data are meaningful. It requires understanding p-values and confidence intervals to accurately interpret whether patterns are significant or due to chance.

What is the best way to identify trends and forecast future values in time-series data?

Trend analysis identifies patterns and forecasts future values in time-series data by examining historical data points. This statistical method helps uncover underlying directions in metrics like user engagement over time.

Do I need to understand standard deviation and p-values to use statistical analysis methods?

Yes, you need to understand statistical concepts like standard deviation, p-values, and confidence intervals. This prerequisite knowledge is required for accurate interpretation of data distributions and hypothesis testing results.

Why does outlier detection matter when analyzing data distributions?

Outlier detection matters because unusual data points can skew analysis and distort descriptive statistics. Finding and handling these anomalies ensures your trend analysis and hypothesis testing reflect accurate data distributions.