Problem Solving › Data Analysis
L'esperimento decisivo è contaminato e i risultati servono lunedì · Data Analysis · Beginner
The year's most important A/B test, the one deciding whether the new pricing model rolls out to the whole customer base, was meant to run eight weeks: in week six you discover it is contaminated. A configuration error let about 15% of the control group see the new pricing, marketing launched a mid-test promotion that hit the two groups asymmetrically, and one cohort's sample is skewed toward long-time customers. The steering committee decides Monday based on the results, the next usable slot to repeat the test is a quarter away, and the contaminated numbers, for what they are worth, favor the new pricing. What do you present on Monday?
L'A/B test più importante dell'anno, quello che decide se il nuovo modello di pricing va esteso a tutta la base clienti, doveva durare otto settimane: alla sesta scopri che è contaminato. Un errore di configurazione ha permesso a circa il 15% degli utenti del gruppo di controllo di vedere il nuovo pricing, il marketing ha lanciato a metà test una promozione che ha toccato i due gruppi in modo asimmetrico, e il campione di una delle due coorti è sbilanciato sui clienti storici. Il comitato direttivo delibera lunedì sulla base dei risultati, il prossimo slot utile per ripetere il test è tra un trimestre, e i numeri contaminati, per quello che valgono, favoriscono il nuovo pricing. Cosa presenti lunedì?
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