Question: Suppose the objective of a study is to determine the differences in effectiveness of Pravastatin and Lovastatin in reducing cholesterol levels of patients with a cardiovascular incident(s) and high lipid levels. A two-sample t-test was computed and the resulting p-value was 0.0426. Use the objective of the study and the results of the t-test answer the following questions:

a) State the null and alternative hypotheses for the study

b) Is the test significant or not? Clearly explain your answer using statistics to support your answer.