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Data Analysis Guides & Tutorials

Free resources to help you understand statistical analysis, research methodology, and how to get the most from your data.

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Business Analytics

A/B Testing a Checkout Page: An E-commerce Case Study That Lifted Conversions 18%

A real-world A/B testing case study walking through hypothesis, sample size, the chi-square and z-test analysis, statistical significance, and the business decision that followed.

2026-05-2910 min read
Chi-SquareA/B TestingHypothesis Testing
SPSS Tutorial

How to Run a Chi-Square Test of Independence in SPSS (Step-by-Step)

Learn how to perform a chi-square test of independence in SPSS to test relationships between categorical variables. Includes assumptions, step-by-step instructions, output interpretation, and APA reporting.

2026-05-259 min read
SPSSChi-Square

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