The partial ANOV table given in Table 12.25 was extracted from the article “Effects of folic acid and combinations of folic acid and vitamin B-12 on plasma homocysteine concentrations in healthy young women” published in the American Journal of Clinical Nutrition (Brönstrup et al., 1998). The ANOV table corresponds to a single-factor experiment with three treatments that were replicated 51, 49, and 50 times. Use the information in Table 12.25 to answer the following:

(a) Fill in the missing entries, the ANOV table given in Table 12.25.

(b) Estimate the standard deviation of the error term in the model.

(c) Test the hypothesis of equal treatment means at the ???? = 0.01 level.

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Source of Variation DF SS MS F P Treatments 2.26 0.108 Error 295 Total