Consider an experiment to study the effect of six samples (A, B, C, D, E, F) of a fertilizer on plant growth. We had 20 observations for each sample. The degrees of freedom for the critical value of F are A. 6 numerator and 20 denominator degrees of freedom B. 5 numerator and 20 denominator degrees of freedom C. 5 numerator and 114 denominator degrees of freedom D. 5 numerator and 19 denominator degrees of freedom O O B A ^

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