A medical research team wants to conduct a statistical test to compare the results of four different experimental treatments intended to lower A1C levels in patients. They have collected data from four samples of 15 participants each, where each sample received one of the treatments, and calculated the mean A1C level of the participants in each treatment group. They plan to conduct the analysis using an alpha level of .05. Respond to the prompts that follow. (1 point each)

1. What statistical test would be appropriate for this analysis? What is the rationale for your choice?
2. State the null and alternative hypotheses in either symbols or words, as appropriate for the test in this scenario.
3. What are the degrees of freedom for the test statistic for this scenario?
4. How does the scenario above differ from a two-way ANOVA?
5. Assuming a statistically significant outcome, state the conclusion for the test.