Determine whether the underlined number is a statistic or a parameter. In a study of all 2042 professors at a college, it is found that 55% own a computer. E) Choose the correct statement below. Statistic because the value is a numerical measurement describing a characteristic of a sample. Parameter because the value is a numerical measurement describing a characteristic of a population. Statistic because the value is a numerical measurement describing a characteristic of a population. OOO Parameter because the value is a numerical measurement describing a characteristic of a sample. Identify which of these types of sampling is used: random, systematic, convenience, stratied, or cluster. To determine her body temperature, Debra divides up her day into three parts: morning, afternoon, and evening. She then measures her body temperature at 3 randomly selected times during each part of the day. What type of sampling is used? Convenience Stratied Systematic Random OOOO Cluster Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. Water temperature in degrees Celsius E> Choose the correct answer below. 0 A. The ratio level of measurement is most appropriate because the data can be ordered, differences (obtained by subtraction) can be found and are meaningful, and there is a natural starting point. B. The interval level of measurement is most appropriate because the data can be ordered, differences can be found and are meaningful, and there is no natural starting zero point. 0 C. The nominal level of measurement is most appropriate because the data cannot be ordered. 0 D. The ordinal level of measurement is most appropriate because the data can be ordered, but differences (obtained by subtraction) cannot be found or are meaningless. Determine whether the study is an experiment or an observational study, and then identify a major problem with the study. The Physicians' Health Study involved 22,071 male physicians. Based on random selections, 11,037 of them were treated with aspirin and the other 11,034 were given placebos. The study was stopped early because it became clear that aspirin reduced the risk of myocardial infarctions by a substantial amount. This is an because the researchers apply a treatment to the individuals. What is a major problem with the study? 0 A. The results apply only to individuals with heart disease. 0 B. There is no blinding or replication, which has a high chance of leading to bias. C. The results apply only to male physicians. O D. This is a convenience sample with voluntary response, which has a high chance of leading to bias. Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. Car lengths measured in feet E> Choose the correct answer below. 0 A. The interval level of measurement is most appropriate because the data can be ordered, differences (obtained by subtraction) can be found and are meaningful, and there is no natural starting point. 0 B. The ordinal level of measurement is most appropriate because the data can be ordered, but differences (obtained by subtraction) cannot be found or are meaningless. O D. The nominal level of measurement is most appropriate because the data cannot be ordered