Statistics midterm(hw1) Questions & Answers

Statistics midterm(hw1) Questions & Answers A cardiologist is interested in the mean recovery period of her patients who have had heart attacks. - ANSWER: A fitness center is interested in the mean amount of time a client exercises in the center each week: (2-5) - ANSWER: A marketing company is interested in the proportion of people in the US who will buy a particular product. - ANSWER: A marriage counselor is interested in the proportion of clients she counsels who stay married - ANSWER: A politician is interested in the proportion of voters in his district who think he is doing a good job. - ANSWER: Insurance companies are interested in the mean health costs each year of their clients, so that they can determine the costs of health insurance. - ANSWER: Political pollsters may be interested in the proportion of people who will vote for a particular cause. - ANSWER: Ski resorts are interested in the mean age that children take their first ski and snowboard lessons. They need this information to plan their ski classes optimally. - ANSWER: What is the parameter of this study? - ANSWER: the average age of all children when they take their first skiing or snowboarding lesson. What is the parameter of this study? - ANSWER: the average amount of time that all clients exercise in one week.