1.In a health survey of 1020 adults in the US, 44% said that they wash their hands after riding public transportation (based on data from KRC Research, http://www.krcresearch.com). a. What is the population of interest? * b. What is the sample? * c. Is the value 44% a parameter or statistic? * d. What is the level of measurement of the value 44% ? Is it ordinal, interval, ratio, or nominal? e. Are the numbers of subjects in such surveys discrete or continuous? * 2. The Financial Times/Harris Poll is a monthly online poll of adults from six countries in Europe and the United States. A January poll included 1020 adults in the United States. One of the questions asked was, "How would you rate the federal bank in handling the credit problems in the financial markets?" Possible responses were Excellent, Good, Fair, Bad, and Terrible (Harris Interactive website, January 2008). a. What was the sample for this survey? * b. Is the data obtained qualitative or quantitative? * c. Of the respondents in the United States, 10% said the Federal Bank is doing a good job. How many individuals provided this response? * 3. A study was conducted in which 20,211 18-year-old Israeli male military recruits were given an exam to measure IQ. In addition, the recruits were asked to disclose their smoking status. An individual was considered a smoker if he smoked at least one cigarette per day. The goal of the study was to determine whether adolescents aged 18 to 21 who smoke have a lower IQ than nonsmokers. It was found that the average IQ of the smokers was 94, while the average IQ of the nonsmokers was 101. The researchers concluded that lower IQ individuals are more likely to choose to smoke, not that smoking makes people less intelligent. a. What is the research objective? * b. What is the population being studied? * c. What is the sample? * d. What are the descriptive statistics? * e. What are the conclusions of the study? *