Question: 12.1 A one-way ANOVA example. A study compared four groups with five observations per group. An F statistic of 3.78 was reported. a. Give the

12.1 A one-way ANOVA example. A study compared four groups with five observations per group. An F statistic of 3.78 was reported.

a. Give the degrees of freedom for this statistic and the entries from Table E that correspond to the F distribution under the null hypothesis.

b. Sketch a picture of this F distribution with the information from Table E included.

c. Given the reported F statistic, how would you report the P-value?

d. If α=0.05 , can you reject H0 and also conclude that all the group means are different? Explain your answer.

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