Biostatistics Excel Help

Hello! I have a biostatistics report to do . I included what I have already started with the data, and the report so you know what the calculations are on. I need to do the rest of the calculations like the graph and sem for the error bars. I have included the excel sheet with the actual data my teacher gave me along with excel sheet that I have done. I also included what I have started. Alot has already been done so I just need what was said above thank you. This wont take long as I just need graph and sem for the error bars.
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