Calculate required sample size per variant for a given baseline rate, minimum detectable effect, and confidence/power.
Normal-approximation. Degrades at p<1% or tiny MDEs — treat result as a lower bound.
Customer acquisition cost, lifetime value, payback period, and the LTV:CAC ratio that tells you if you have a business.
Project revenue, profit, and ROI from a single email send. Tune list size, open / click / conversion rates, AOV, and send cost.
Score a target keyword 0-100 using competitor DR, content length, backlinks, and intent match. Tells you go / hard / skip.
Calculate required sample size per variant for a given baseline rate, minimum detectable effect, and confidence/power.
Normal-approximation. Degrades at p<1% or tiny MDEs — treat result as a lower bound.
Customer acquisition cost, lifetime value, payback period, and the LTV:CAC ratio that tells you if you have a business.
Project revenue, profit, and ROI from a single email send. Tune list size, open / click / conversion rates, AOV, and send cost.
Score a target keyword 0-100 using competitor DR, content length, backlinks, and intent match. Tells you go / hard / skip.