Which of the following is(are) true? O a. df for MSwithin = N D k O b. df for MSbetween = k 0 1 O c. dftotal = N D 1 O d. All of these QUESTION 14 The alternative hypothesis for which Fobt is appropriate in the one-way ANOVA is O a. always nondirectional O b. never nondirectional O c. sometimes directional O d. evaluated with a one-tailed probability value O e. always nondirectional and never nondirectional O f. never nondirectional and evaluated with a one-tailed probability value QUESTION 15 If its assumptions are met, the analysis of variance technique is appropriate when O a. Two or more factors are varied O b. Several levels of a single independent variable are compared O c. Three or more groups are involved O d. All of these