For the following data, what is the value of SSB?           …

For the following data, what is the value of SSB?                    B1                    B2      A1       n = 5     M = 1    SS = 10        n = 5      M = 2     SS = 20      A2       n = 5     M = 1    SS = 10        n = 5      M = 4     SS = 20

Last week Sarah had exams in Math and in Spanish.  On the Ma…

Last week Sarah had exams in Math and in Spanish.  On the Math exam, the mean was µ = 40 with σ = 5 and Sarah had a score of X = 45. On the Spanish exam, the mean was µ = 60 with σ = 8 and Sarah had a score of X = 68. For which class should Sarah expect the better grade?