We are given the following ANOVA table with 4 groups and 6 observations in each group,

Analysis of Variance Table

Source df SS MS F

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Among Groups 3

Within Groups 210

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Total 300

(a) Complete the ANOVA table.

(b) State the null and alternative hypotheses.

(c) At the 0.05 level of significance, is there sufficient evidence of a difference in the means of the 4 groups?