1. Explain whether each of the following constitutes a population or a sample. a.) Number of personal fouls committed by alL NBA players during the 2008-2009 sedson. b.) Yield of potatoes per dcre for 10 pieces of land c.) Weekly salaries of all employees of a compadny
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- Toxic waste The Environmental Protection Agency took amap of a region near a former industrial waste dump andplaced a grid of 552 squares on it. They randomly selectedany 16 of those squares from which to collect soil samplesand checked each for evidence of toxic chemicals.a) What type of sampling did they use?b) Is there any sort of bias associated with this samplingprocedure?c) One researcher suggests that plots closer to the olddump site could contain more contaminants than thosefarther away. How could the sampling procedure beimproved to take this into account?According to the chart: a) is it true that more than 50% of the population of USA and Mexico are either overweight or obese? b) is it true that more than 50% of the USA and Mexico MALES are either overweight or obese? c) is it true that being overweight is substantially more prevalent in India than obesity? d) is it ture that obesity is highly prevalent in China?Surveys were conducted with every 7 households in Muscogee County, asking individuals to report information on their household, such as age, sex, race, education, income levels, and current health care needs. The purpose of the study was to describe the population of Muscogee County and assess the current health care needs of its constituents. 3. What research design was likely used to conduct this research? a. Case report b. Case series c. Ecological Study d. Cross-sectional (descriptive) e. Cross-sectional (analytic) f. Case-control study g. Retrospective cohort study h. Prospective cohort study i. Randomized clinical trial
- I am struggling with part B of this question.b) Caitlyn has to determine how many of the 120 employees in her work nlo comprehensive car insurance. She wants to obtain a sample of 40 emploves selections employees from each department in proportion to the number of indivedt the departments Define the term population with relation to the question above.Consider these sample data: x1=15, x2=9, x3=3, x4=22. a. Find n. b. Compute ∑xi. c.Determine x. a.n=
- 1. Mark 30 small pieces of paper with an A, a B, or a C. Put the pieces of paper in a bag. Trade bags with other students in the class. a. Generate a sample by choosing a piece of paper from your bag 10 times, replacing the piece of paper each time. Record the number of times you choose each letter. Repeat this process to generate five more samples. b. Use each sample to make an estimate for the number of As and Bs in the bag. Then describe the variation of the six estimates. Make estimates for the numbers of As, Bs, and Cs in the bag based on all the samples. c. Take the pieces of paper out of the bag. How do your estimates compare to the population? Do you think you can make a more accurate estimate? If so, explain how.Identify the following measures as either quantitative or qualitative: a. The genders of the first 40 newborns in a hospital for one year. b. The natural hair color of 20 randomly selected fashion models. c. The ages of 20 randomly selected fashion models. d. The fuel economy in miles per gallon of 20 new cars purchased last month. e. The political affiliation of 500 randomly selected voters.3. Data on different types of flat fish are showm below. Construct a (relative) irequency table and a bar chart. Flounder Halibut | Turbot | Turbot | Flounder Flounder Turbot Flounder Turbot Sole Sole Turbot Halibut Sole Flounder Turbot Sole Halibut Sole Flounder
- 1. Identify the population and the sample: a) A survey of 1353 American households found that 18% of the households own a computer. b) A recent survey of 2625 elementary school children found that 28% of the children could be classified obese. c) The average weight of every sixth person entering the mall within 3 hour period was 146 lb.5) Which type of data is provided in the scenario given below? a.) neither accurate nor precise b.) accurate, but not precise c.) precise, but not accurate d.) precise and accurate43) A plant manager is concerned with the variability of beer being filled in 12 oz. cans. The most appropriate control chart would be which of the following? A) x-bar chart B) R-chart C) p-chart D) c-chart E) None of the above 44) An airline company tracks the number of lost bags that occur each day. This is best monitored by which of the following control charts? A) x-bar chart B) R-chart C) p-chart D) c-chart E) None of the above 45) When receiving a shipment from a supplier, inspection must be done to check the fraction of defective products. This is best monitored by which of the following control charts? A) x-bar chart B) R-chart C) p-chart D) c-chart E) None of the above 46) A coffee dispenser is supposed to dispense coffee into an 8 o.z. cup. The average amount of coffee filled into the cup must be below 7.9. This is best monitored by which of the following control charts? A) x-bar chart B) R-chart C) p-chart D) c-chart E) None of the above 47) Which of the following control…