Answer questions 11, 12, 13 in Merrill Introduction to Epidemiology 8th Edition

Answer questions 11, 12, 13 in Merrill Introduction to Epidemiology 8th Edition textbook.
The assignment is to complete Epidemiology Assignment Questions 11-13 on the provided word document.
Need to apply 6 steps of hypothesis testing to the data. In addition, calculate the 95% confidence interval and use this to say something about statistical significance.
Questions attached to answer in word document, cite any other sources used to answer questions. Attaching pictures of textbook example and answer.