Using a significance level of 5%, test the hypothesis that the four magazine types have the same mean length. Give the following:

1. Null and Alternative Hypotheses.

2. df(n) = ______ df(d) = _______

3. F-statistic = __________

4. P-value = ___________

5. F-critical = __________

6. Decision: ___________

7. Conclusion: __________