How to quantify the discrepancy between two observational re
Posted: June 18 2014
When reading the original papers from Planck Collaboration, I am always confused by the sentence like that ''this measument ([tex]H_0=73.8\pm2.4[/tex] km/s/Mpc) is discrepant with the planck estimate ([tex]H_0=67.3\pm1.2[/tex] km/s/Mpc) at about the 2.5[tex]\sigma[/tex].''
Here, how is the value of 2.5[tex]\sigma[/tex] calculated?
I have tried many ways to get this result, but none of them satisfies me. Can anybody enlighten me?
Here, how is the value of 2.5[tex]\sigma[/tex] calculated?
I have tried many ways to get this result, but none of them satisfies me. Can anybody enlighten me?