A random sample of five observations from three normally distributed populations produced the following data: (You may find it useful to reference the Ftable.) xA=1.sA2=32.2xB=1.vsB2=15.5LC=0.0sC2=6.3 Click here for the Excel Data File a. Calculate the grand mean. (Round final answer to 4 decimal places.) b. Calculate SSTR and MSTR. (Round final answers to 4 decimal places.) c. Calculate SSE and MSE. (Round final answers to 4 decimal places.) d. Specify the competing hypotheses in order to determine whether some differences exist between the population means. H0:A=B=C;HA : Not all population means are equal. H0:ABC;HA : Not all population means are equal. H0:ABC;HA : Not all population means are equal. e-1. Calculate the value of the F(df1,df2) test statistic. (Round final answer to 3 decimal places.) e-2. Find the p-value. p-value 0.10 0.05p-value