# # Problem Set 5, Problem 2 # # Diameter of a planetary nebula measured 10 times from an # IR imager (so each measurement is different, with a different uncertainty) # # D(arcsec) SigD(arcsec) 24.3 0.5 25.4 0.6 24.7 0.5 27.9 0.8 22.4 0.3 21.0 0.2 22.2 0.3 23.5 0.4 23.7 0.5 22.0 0.3