1. For each of the following variables, decide whether it is qualitative (L) or quantitative (N). a. number of wheels on a vehicle c. a person's favorite color b. county a person lives in d. distance a person drives to work 2. For each of the following quantitative variables, decide whether it is discrete (D) or continuous (C). a. number of marbles in a jar c. weight of a baby at birth b. number of hours a phone battery lasts d. number of TV's in a household 3. A shipment of 2000 tire pressure gauges arrives at an automotive company warehouse. Fifty of the tire gauges are randomly selected from various parts of the shipment and the percent of those that are defective is determined. If this percentage is greater than 5%, the shipment is sent back Which of the following is the population of interest for this example? a. all tire pressure gauges c. the 2000 tire gauges in the shipment b. the 50 randomly selected tire gauges d. 5% of the tire gauges in the shipment Which of the following is the sample for this example? a. all tire pressure gauges c the 2000 tire gauges in the shipment b. the 50 randomly selected tire gauges d. 5% of the tire gauges in the shipment if 4 of the 50 randomly selected tire gauges are found to be defective, what percentage is that? Show work. d. 0.08% C. 8% a. 4% b. 12.5% The percentage in the previous question is a a. parameter b. statistic Would the shipment be returned? a. Yes, because more than 5% of the 50 tire pressure gauges were defective, b. No, because less than 5% of the 50 tire pressure gauges were defective. c. Unable to be determined because they didn't check the whole shipment. 4. Decide in each of the following cases whether it is an example of an observational study (0) or an experiment (E). a. Does attending an SAT preparation course improve scores? A comparison is done of the math SAT scores between students who attend a 6 week preparation course and those who do not b. Is there a significant difference in the SAT scores of students who are right-handed as opposed to those who are left-handed? A comparison is done of the math SAT scores between students who are right-handed and those who are left-handed