Design valid A/B tests for global marketing — hypothesis formulation, sample size calculation, statistical significance, multi-arm testing, primary vs secondary metrics. Tools: Optimizely, VWO, Google Optimize (sunset 2023, alternatives), built-in platform tests (Meta, Google). Trigger: 'A/B test', 'split test', 'multivariate test', 'experiment design', 'statistical significance', 'sample size calculator'.
How to install 19-ab-test-setup-global?
minhnv0807/ai-business-skills/19-ab-test-setup-global
$npx -y skills add minhnv0807/ai-business-skills --skill 19-ab-test-setup-globalInstalls into the current project.
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Run `npx skills use "https://github.com/minhnv0807/ai-business-skills" --skill "minhnv0807/ai-business-skills/19-ab-test-setup-global"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/minhnv0807/ai-business-skills" that are relevant to the current task. Run `npx skills add "https://github.com/minhnv0807/ai-business-skills"` and select the relevant skills, then follow their instructions.
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