title: Plot all point and line as mean of all observation over time
body: <p>I would like to use ggplot that can show all observations (all points) and a line (mean of all observation) over multiple times points post treatment for two groups (treated and untreated) with differnt colors between groups. I have attached my example data set and a sample graph from previous publication</p>
  <p><a href="https://i.stack.imgur.com/ONnbD.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ONnbD.jpg" alt="enter image description here" /></a></p>
  <p><a href="https://i.stack.imgur.com/gHN3U.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/gHN3U.png" alt="enter image description here" /></a></p>