a. Compute SST, SSTR, and SSE by using the computing formulas given in Formula 13.1
b. Compare your results in part (a) for SSTR and SSE with those in Exercises 13.24€“13.29, where you employed the defining formulas.
c. Construct a one-way ANOVA table.
d. Decide, at the 5% significance level, whether the data provide sufficient evidence to conclude that the means of the populations from which the samples were drawn are not all the same.

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Sample 1 Sample 2 Sample 3 Sample 4 Sample 5