Hi everyone! I am not very good with stats an I am trying to identify the significance of any variation from a baseline value for the control groups in my meta-analysis. I have the following data for each study included in my meta-analysis:

-sample size of control group

-mean of each control group

-standard deviation of each control group

I want to compare the overall deviation from a baseline value of 220.

What would be the best test to conduct on this data and what would be the best way to visualize it?

Thank you for your help!