試験
通常
試験時間: 00:00問題時間: 00:00
問題一覧
問題 58 / 65
When introducing a new recommendation method in an A/B test, which metric is most appropriate to indicate how much the purchase rate has improved compared to the existing method?
①p-value
②Width of the confidence interval
③Lift (improvement rate)
④Average number of recommendations
⑤Model complexity