Given the following ANOVA output, answer the questions that follow:

(a) The researcher wants to test H0: µ1 = µ2 = µ3 = µ4 against H1: at least one of the means is different. Based on the ANOVA table, what should the researcher conclude?
(b) What is the mean square due to error?
(c) Explain why it is not necessary to use Tukey's test on these data.

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Analysis of Variance for Response MS Source Block Treatment Error Total df 8 2105.436 263.179 278.66 0.000 3 24 35 2134.496 2.26 0.108 6.393 22.667 2.131 0.944