Notation Listed below are body temperatures from five different subjects measured at 8 AM and again at 12 AM (from Data Set 2 “Body Temperatures”). Find the values of d and sd. In general, what does md represent?

Temperature 1 F2 at 8 AM 97.8 99.0 97.4 97.4 97.5 Temperature 1 F2 at 12 AM 98.6 99.5 97.5 97.3 97.6