We have build Auto-Target activities and some have had positive lift and some has negative lift. All activities had the green check icon next to each experience. However, in our report, we haven't reach 95% confidence level. My questions are as follow:
1. For an activity with positive lift for all experiences, should we wait for until 95% confidence level to say the model works, or don't need to wait and we can say the model already works. We can split more traffic into experiences than control? (The confidence level always has fluctuations.)
2. If In a Auto-Target activity, one experience has positive lift, the other one has negative lift and all with green check icon there. How could we explain that? Could you please reply with two situations as: reach 95% confidence level and below 95% confidence level;
In short, what is the best practice to explain the confidence level and lift in auto-target activity.