Refer to the output here concerning the time (min) it took four different persons (blocks) to complete three different tasks.
(a) Identify the SSE and its degrees of freedom.
(b) Are the block means different? Check the calculation of F for blocks from the given sums of squares and degrees of freedom.
(c) Are the mean task times different? Check the calculation of F for treatments (tasks) from the given sums of squares and degrees of freedom.
(d) Use multiple-r 95% confidence intervals to investigate differences between mean task times.

7wo-way Analyais of Variance Analysis of Variance for Time Source DF Block Treatment 2 7.17 35.589.35 0.014 Error Total 11 sS MS 3 90.92 30.31 7.96 0.016 6 22.83 3.81 184,92 Block MeanTreatment Hean 8.00 9.50 13.75 9.0 13.72 6.7 3 12.3