Math question help please

hypothesis? Scenario E: Yet another team of investigators embarked on a long-term study to assess the impact of low versus high levels of blood cholesterol in Native Americans on subsequent occurrence of myocardial infarction. They recruited 100 patients from three Indian Health Service hospital systems, and divided them into two groups based on cholesterol LDL/HDL ratio (high ratio is bad) - 42 in the high group and 58 in the low group. By the end of the fifteen-year follow-up period, 16 in the high group and 7 in the low group had experienced a myocardial infarction. 1. What type of study is this and what makes it so? 2. What is the independent variable in this scenario, and what type is it? What is the dependent variable in this scenario, and what type is it? . State a null hypothesis. . What is the most appropriate measure of association to compare the rates of myocardial infarction in the two groups and Why? (See Week 2 PPT) Calculate that measure of association. What are the results? 5. Chi square w/o Yates correction is the most appropriate statistical test to test the significance of this measure of association. Why and what are the 2-tailed p-results? 6. What do the results mean in terms of the null hypothesis? Question F. From your readings, describe