if a journal article presents a one - way anova result as: \f(2, 38)=1.60, n.s.\, then we should know there…

if a journal article presents a one - way anova result as: \f(2, 38)=1.60, n.s.\, then we should know there are ___ groups being compared and researchers __________ their null hypothesis.\nselect one:\n a. 5; reject\n b. 3; do not reject\n c. 5; do not reject\n d. 2; reject\n e. 4; reject\n f. 3; reject\n g. 2; do not reject\n h. 4; do not reject\nclear my choice
Answer
Brief Explanations:
In a one - way ANOVA, the first degree of freedom in the F - statistic ($F(k - 1, n - k)$) represents the between - groups degrees of freedom. Here, the first value in $F(2,38)$ is 2, and since $k-1 = 2$, then $k=3$ (where $k$ is the number of groups). The notation "n.s." stands for not significant, which means we do not reject the null hypothesis.
Answer:
B. 3; do not reject