13. The following are scores from three data sets. Figure the t tests for these using the .01 level, two-tailed. Then, for each, also figure a one-way analysis of variance

(also .01 level) using the regular method of “Introduction to the Analysis of Variance” (not the structural model approach shown in the Advanced Topic section of that chapter). Make a chart of the similarities of

(a) t df to F denominator df,

(b) t cutoff to square root of F cutoff,

(c) S2 Pooled to S2 Within, and

(d) the t score to the square root of the F ratio.

Experimental Group Control Group N M S2 N M S2

(i) 10 604 60 10 607 50

(ii) 40 604 60 40 607 50

(iii) 10 604 20 10 607 16