Random sampling from four normally distributed populations produced the following data: (You may find it useful to reference the F table.)a. Calculate the grand mean. (Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.)b. Calculate SSTR and MSTR. (Round intermediate calculations to at least 4 decimal places and final answers to 4 decimal places.) c. Calculate SSE and MSE. (Round intermediate calculations to at least 4 decimal places and 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: ?A ? ?B ? ?C; HA: Not all population means are equal.H0: ?A ? ?B ? ?C; HA: Not all population means are equal.e-1. Calculate the value of the F(df1, df2) test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.)

Random sampling from four normally distributed populations produced the following data: (You may find it useful to reference the F table.) Treatments A B C D -11 -8 -12 -13 -13 -13 -13 -10 -15 -8 -15 -12 -13 -10 Click here for the Excel Data File a. Calculate the grand mean. (Negative value should be indicated by a minus sign. Round your answer to 2 decimal places.) Grand mean b. Calculate SSTR and MSTR. (Round intermediate calculations to at least 4 decimal places and final answers to 4 decimal places.) SSTR MSTR c. Calculate SSE and MSE. (Round intermediate calculations to at least 4 decimal places and final answers to 4 decimal places.)