How do I create Confidence interval line on a bar chart

Hi Folks,

I need your urgent help on the bar chart where I could get the "Confidence interval" line on a bar chart.

Given below is the link to access the Pbi file
https://drive.google.com/drive/folders/1rhtzOHSSAjui57CqepNe5dle-aSJsJHQ?usp=share_link

Thanks in Advance!